Hematology News

A large multicenter study provides further evidence supporting the rationale for multidisciplinary teams for cardiogenic shock, one of the most lethal diseases in cardiovascular medicine.

The analysis of 24 critical care ICUs in the Critical Care Cardiology Trials Network showed that the presence of a shock team was independently associated with a 28% lower risk for CICU mortality (23% vs. 29%; odds ratio, 0.72; P = .016).

Patients treated by a shock team also had significantly shorter CICU stays and less need for mechanical ventilation or renal replacement therapy, as reported in the Journal of the American College of Cardiology.

“It’s observational, but the association that we’re seeing here, just because of our sample size, is the strongest that’s been published yet,” lead author Alexander Papolos, MD, MedStar Washington Hospital Center, said in an interview.

Although a causal relationship cannot be drawn, the authors suggest several factors that could explain the findings, including a shock team’s ability to rapidly diagnose and treat cardiogenic shock before multiorgan dysfunction occurs.

Centers with shock teams also used significantly more pulmonary artery catheters (60% vs. 49%; adjusted OR, 1.86; P < .001) and placed them earlier (0.3 vs. 0.66 days; P = .019).

Pulmonary artery catheter (PAC) use has declined after earlier trials like ESCAPE showed little or no benefit in other acutely ill patient groups, but positive results have been reported recently in cardiogenic shock, where a PAC is needed to determine the severity of the lesion and the phenotype, Dr. Papolos observed.

A 2018 study showed PAC use was tied to increased survival among patients with acute myocardial infarction cardiogenic shock (AMI-CS) supported with the Impella (Abiomed) device. Additionally, a 2021 study by the Cardiogenic Shock Working Group demonstrated a dose-dependent survival response based on the completeness of hemodynamic assessment by PAC prior to initiating mechanical circulatory support (MCS).

A third factor might be that a structured, team-based evaluation can facilitate timely and optimal MCS device selection, deployment, and management, suggested Dr. Papolos.

Centers with shock teams used more advanced types of MCS – defined as Impella, TandemHeart (LivaNova), extracorporeal membrane oxygenation, and temporary or durable surgical ventricular assist devices – than those without a shock team (53% vs. 43%; adjusted OR, 1.73; P = .005) and did so more often as the initial device (42% vs. 28%; P = .002).

Overall MCS use was lower at shock team centers (35% vs. 43%), driven by less frequent use of intra-aortic balloon pumps (58% vs. 72%).

“The standard, basic MCS has always been the balloon pump because it’s something that’s easy to put in at the cath lab or at the bedside,” Dr. Papolos said. “So, if you take away having all of the information and having the right people at the table to discuss what the best level of support is, then you’re going to end up with balloon pumps, and that’s what we saw here.”

The study involved 6,872 consecutive medical admissions at 24 level 1 CICU centers during an annual 2-month period from 2017 to 2019. Of these, 1,242 admissions were for cardiogenic shock and 546 (44%) were treated at one of 10 centers with a shock team.

Shock team centers had higher-acuity patients than centers without a shock team (Sequential Organ Failure Assessment score, 4 vs. 3) but a similar proportion of patients with AMI-CS (27% vs. 28%).

Among all admissions, CICU mortality was not significantly different between centers with and without a shock team.

For cardiogenic shock patients treated at centers with and without a shock team, the median CICU stay was 4.0 and 5.1 days, respectively, mechanical ventilation was used in 41% and 52%, respectively, and new renal replacement therapy in 11% and 19%, respectively (P < .001 for all).

Shock team centers used significantly more PACs for AMI-CS and non–AMI-CS admissions; advanced MCS therapy was also greater in the AMI-CS subgroup.

Lower CICU mortality at shock team centers persisted among patients with non-AMI-CS (adjusted OR, 0.67; P = .017) and AMI-CS (adjusted OR, 0.79; P = .344).

“This analysis supports that all AHA level 1 cardiac ICUs should strongly consider having a shock team,” Dr. Papolos said.

Evidence from single centers and the National Cardiogenic Shock Initiative has shown improved survival with a cardiogenic shock algorithm, but this is the first report specifically comparing no shock teams with shock teams, Perwaiz Meraj, MD, Northwell Health, Manhansett, N.Y., told this news organization.

“People may say that it’s just another paper that’s saying, ‘shock teams, shock teams, rah, rah, rah,’ but it’s important for all of us to really take a close look under the covers and see how are we best managing these patients, what teams are we putting together, and to create systems of care, where if you’re at a center that really doesn’t have the capabilities of doing this, then you should partner up with a center that does,” he said.

Notably, the 10 shock teams were present only in medium or large urban, academic medical centers with more than 500 beds. Although they followed individual protocols, survey results show service-line representation, structure, and operations were similar across centers.

They all had a centralized way to activate the shock team, the service was 24/7, and members came from areas such as critical care cardiology (100%), cardiac surgery (100%), interventional cardiology (90%), advanced heart failure (80%), and extracorporeal membrane oxygenation service (70%).

Limitations of the study include the possibility of residual confounding, the fact that the registry did not capture patients with cardiogenic shock managed outside the CICU or the time of onset of cardiogenic shock, and data were limited on inotropic strategies, sedation practices, and ventilator management, the authors wrote.

“Although many critics will continue to discuss the lack of randomized controlled trials in cardiogenic shock, this paper supports the process previously outlined of a multidisciplinary team-based approach improving survival,” Dr. Meraj and William W. O’Neill, MD, director of the Center for Structural Heart Disease and Henry Ford Health System, Detroit, and the force behind the National Cardiogenic Shock Initiative, wrote in an accompanying editorial.

They point out that the report doesn’t address the escalation of care based on invasive hemodynamics in the CICU and the protocols to prevent acute vascular/limb complications (ALI) that can arise from the use of MCS.

“Many procedural techniques and novel CICU models exist to mitigate the risk of ALI in CS patients with MCS,” they wrote. “Finally, escalation of care and support is vital to the continued success of any shock team and center.”

One coauthor has served as a consultant to Abbott. Another has served as a consultant to the Abiomed critical care advisory board. All other authors reported having no relevant financial relationships. Dr. Meraj has received research and grant funding from Abiomed, Medtronic, CSI, and Boston Scientific. Dr. O’Neill has received consulting/speaker honoraria from Abiomed, Boston Scientific, and Abbott.

A version of this article first appeared on Medscape.com.

A large multicenter study provides further evidence supporting the rationale for multidisciplinary teams for cardiogenic shock, one of the most lethal diseases in cardiovascular medicine.

The analysis of 24 critical care ICUs in the Critical Care Cardiology Trials Network showed that the presence of a shock team was independently associated with a 28% lower risk for CICU mortality (23% vs. 29%; odds ratio, 0.72; P = .016).

Patients treated by a shock team also had significantly shorter CICU stays and less need for mechanical ventilation or renal replacement therapy, as reported in the Journal of the American College of Cardiology.

“It’s observational, but the association that we’re seeing here, just because of our sample size, is the strongest that’s been published yet,” lead author Alexander Papolos, MD, MedStar Washington Hospital Center, said in an interview.

Although a causal relationship cannot be drawn, the authors suggest several factors that could explain the findings, including a shock team’s ability to rapidly diagnose and treat cardiogenic shock before multiorgan dysfunction occurs.

Centers with shock teams also used significantly more pulmonary artery catheters (60% vs. 49%; adjusted OR, 1.86; P < .001) and placed them earlier (0.3 vs. 0.66 days; P = .019).

Pulmonary artery catheter (PAC) use has declined after earlier trials like ESCAPE showed little or no benefit in other acutely ill patient groups, but positive results have been reported recently in cardiogenic shock, where a PAC is needed to determine the severity of the lesion and the phenotype, Dr. Papolos observed.

A 2018 study showed PAC use was tied to increased survival among patients with acute myocardial infarction cardiogenic shock (AMI-CS) supported with the Impella (Abiomed) device. Additionally, a 2021 study by the Cardiogenic Shock Working Group demonstrated a dose-dependent survival response based on the completeness of hemodynamic assessment by PAC prior to initiating mechanical circulatory support (MCS).

A third factor might be that a structured, team-based evaluation can facilitate timely and optimal MCS device selection, deployment, and management, suggested Dr. Papolos.

Centers with shock teams used more advanced types of MCS – defined as Impella, TandemHeart (LivaNova), extracorporeal membrane oxygenation, and temporary or durable surgical ventricular assist devices – than those without a shock team (53% vs. 43%; adjusted OR, 1.73; P = .005) and did so more often as the initial device (42% vs. 28%; P = .002).

Overall MCS use was lower at shock team centers (35% vs. 43%), driven by less frequent use of intra-aortic balloon pumps (58% vs. 72%).

“The standard, basic MCS has always been the balloon pump because it’s something that’s easy to put in at the cath lab or at the bedside,” Dr. Papolos said. “So, if you take away having all of the information and having the right people at the table to discuss what the best level of support is, then you’re going to end up with balloon pumps, and that’s what we saw here.”

The study involved 6,872 consecutive medical admissions at 24 level 1 CICU centers during an annual 2-month period from 2017 to 2019. Of these, 1,242 admissions were for cardiogenic shock and 546 (44%) were treated at one of 10 centers with a shock team.

Shock team centers had higher-acuity patients than centers without a shock team (Sequential Organ Failure Assessment score, 4 vs. 3) but a similar proportion of patients with AMI-CS (27% vs. 28%).

Among all admissions, CICU mortality was not significantly different between centers with and without a shock team.

For cardiogenic shock patients treated at centers with and without a shock team, the median CICU stay was 4.0 and 5.1 days, respectively, mechanical ventilation was used in 41% and 52%, respectively, and new renal replacement therapy in 11% and 19%, respectively (P < .001 for all).

Shock team centers used significantly more PACs for AMI-CS and non–AMI-CS admissions; advanced MCS therapy was also greater in the AMI-CS subgroup.

Lower CICU mortality at shock team centers persisted among patients with non-AMI-CS (adjusted OR, 0.67; P = .017) and AMI-CS (adjusted OR, 0.79; P = .344).

“This analysis supports that all AHA level 1 cardiac ICUs should strongly consider having a shock team,” Dr. Papolos said.

Evidence from single centers and the National Cardiogenic Shock Initiative has shown improved survival with a cardiogenic shock algorithm, but this is the first report specifically comparing no shock teams with shock teams, Perwaiz Meraj, MD, Northwell Health, Manhansett, N.Y., told this news organization.

“People may say that it’s just another paper that’s saying, ‘shock teams, shock teams, rah, rah, rah,’ but it’s important for all of us to really take a close look under the covers and see how are we best managing these patients, what teams are we putting together, and to create systems of care, where if you’re at a center that really doesn’t have the capabilities of doing this, then you should partner up with a center that does,” he said.

Notably, the 10 shock teams were present only in medium or large urban, academic medical centers with more than 500 beds. Although they followed individual protocols, survey results show service-line representation, structure, and operations were similar across centers.

They all had a centralized way to activate the shock team, the service was 24/7, and members came from areas such as critical care cardiology (100%), cardiac surgery (100%), interventional cardiology (90%), advanced heart failure (80%), and extracorporeal membrane oxygenation service (70%).

Limitations of the study include the possibility of residual confounding, the fact that the registry did not capture patients with cardiogenic shock managed outside the CICU or the time of onset of cardiogenic shock, and data were limited on inotropic strategies, sedation practices, and ventilator management, the authors wrote.

“Although many critics will continue to discuss the lack of randomized controlled trials in cardiogenic shock, this paper supports the process previously outlined of a multidisciplinary team-based approach improving survival,” Dr. Meraj and William W. O’Neill, MD, director of the Center for Structural Heart Disease and Henry Ford Health System, Detroit, and the force behind the National Cardiogenic Shock Initiative, wrote in an accompanying editorial.

They point out that the report doesn’t address the escalation of care based on invasive hemodynamics in the CICU and the protocols to prevent acute vascular/limb complications (ALI) that can arise from the use of MCS.

“Many procedural techniques and novel CICU models exist to mitigate the risk of ALI in CS patients with MCS,” they wrote. “Finally, escalation of care and support is vital to the continued success of any shock team and center.”

One coauthor has served as a consultant to Abbott. Another has served as a consultant to the Abiomed critical care advisory board. All other authors reported having no relevant financial relationships. Dr. Meraj has received research and grant funding from Abiomed, Medtronic, CSI, and Boston Scientific. Dr. O’Neill has received consulting/speaker honoraria from Abiomed, Boston Scientific, and Abbott.

A version of this article first appeared on Medscape.com.

A large multicenter study provides further evidence supporting the rationale for multidisciplinary teams for cardiogenic shock, one of the most lethal diseases in cardiovascular medicine.

The analysis of 24 critical care ICUs in the Critical Care Cardiology Trials Network showed that the presence of a shock team was independently associated with a 28% lower risk for CICU mortality (23% vs. 29%; odds ratio, 0.72; P = .016).

Patients treated by a shock team also had significantly shorter CICU stays and less need for mechanical ventilation or renal replacement therapy, as reported in the Journal of the American College of Cardiology.

“It’s observational, but the association that we’re seeing here, just because of our sample size, is the strongest that’s been published yet,” lead author Alexander Papolos, MD, MedStar Washington Hospital Center, said in an interview.

Although a causal relationship cannot be drawn, the authors suggest several factors that could explain the findings, including a shock team’s ability to rapidly diagnose and treat cardiogenic shock before multiorgan dysfunction occurs.

Centers with shock teams also used significantly more pulmonary artery catheters (60% vs. 49%; adjusted OR, 1.86; P < .001) and placed them earlier (0.3 vs. 0.66 days; P = .019).

Pulmonary artery catheter (PAC) use has declined after earlier trials like ESCAPE showed little or no benefit in other acutely ill patient groups, but positive results have been reported recently in cardiogenic shock, where a PAC is needed to determine the severity of the lesion and the phenotype, Dr. Papolos observed.

A 2018 study showed PAC use was tied to increased survival among patients with acute myocardial infarction cardiogenic shock (AMI-CS) supported with the Impella (Abiomed) device. Additionally, a 2021 study by the Cardiogenic Shock Working Group demonstrated a dose-dependent survival response based on the completeness of hemodynamic assessment by PAC prior to initiating mechanical circulatory support (MCS).

A third factor might be that a structured, team-based evaluation can facilitate timely and optimal MCS device selection, deployment, and management, suggested Dr. Papolos.

Centers with shock teams used more advanced types of MCS – defined as Impella, TandemHeart (LivaNova), extracorporeal membrane oxygenation, and temporary or durable surgical ventricular assist devices – than those without a shock team (53% vs. 43%; adjusted OR, 1.73; P = .005) and did so more often as the initial device (42% vs. 28%; P = .002).

Overall MCS use was lower at shock team centers (35% vs. 43%), driven by less frequent use of intra-aortic balloon pumps (58% vs. 72%).

“The standard, basic MCS has always been the balloon pump because it’s something that’s easy to put in at the cath lab or at the bedside,” Dr. Papolos said. “So, if you take away having all of the information and having the right people at the table to discuss what the best level of support is, then you’re going to end up with balloon pumps, and that’s what we saw here.”

The study involved 6,872 consecutive medical admissions at 24 level 1 CICU centers during an annual 2-month period from 2017 to 2019. Of these, 1,242 admissions were for cardiogenic shock and 546 (44%) were treated at one of 10 centers with a shock team.

Shock team centers had higher-acuity patients than centers without a shock team (Sequential Organ Failure Assessment score, 4 vs. 3) but a similar proportion of patients with AMI-CS (27% vs. 28%).

Among all admissions, CICU mortality was not significantly different between centers with and without a shock team.

For cardiogenic shock patients treated at centers with and without a shock team, the median CICU stay was 4.0 and 5.1 days, respectively, mechanical ventilation was used in 41% and 52%, respectively, and new renal replacement therapy in 11% and 19%, respectively (P < .001 for all).

Shock team centers used significantly more PACs for AMI-CS and non–AMI-CS admissions; advanced MCS therapy was also greater in the AMI-CS subgroup.

Lower CICU mortality at shock team centers persisted among patients with non-AMI-CS (adjusted OR, 0.67; P = .017) and AMI-CS (adjusted OR, 0.79; P = .344).

“This analysis supports that all AHA level 1 cardiac ICUs should strongly consider having a shock team,” Dr. Papolos said.

Evidence from single centers and the National Cardiogenic Shock Initiative has shown improved survival with a cardiogenic shock algorithm, but this is the first report specifically comparing no shock teams with shock teams, Perwaiz Meraj, MD, Northwell Health, Manhansett, N.Y., told this news organization.

“People may say that it’s just another paper that’s saying, ‘shock teams, shock teams, rah, rah, rah,’ but it’s important for all of us to really take a close look under the covers and see how are we best managing these patients, what teams are we putting together, and to create systems of care, where if you’re at a center that really doesn’t have the capabilities of doing this, then you should partner up with a center that does,” he said.

Notably, the 10 shock teams were present only in medium or large urban, academic medical centers with more than 500 beds. Although they followed individual protocols, survey results show service-line representation, structure, and operations were similar across centers.

They all had a centralized way to activate the shock team, the service was 24/7, and members came from areas such as critical care cardiology (100%), cardiac surgery (100%), interventional cardiology (90%), advanced heart failure (80%), and extracorporeal membrane oxygenation service (70%).

Limitations of the study include the possibility of residual confounding, the fact that the registry did not capture patients with cardiogenic shock managed outside the CICU or the time of onset of cardiogenic shock, and data were limited on inotropic strategies, sedation practices, and ventilator management, the authors wrote.

“Although many critics will continue to discuss the lack of randomized controlled trials in cardiogenic shock, this paper supports the process previously outlined of a multidisciplinary team-based approach improving survival,” Dr. Meraj and William W. O’Neill, MD, director of the Center for Structural Heart Disease and Henry Ford Health System, Detroit, and the force behind the National Cardiogenic Shock Initiative, wrote in an accompanying editorial.

They point out that the report doesn’t address the escalation of care based on invasive hemodynamics in the CICU and the protocols to prevent acute vascular/limb complications (ALI) that can arise from the use of MCS.

“Many procedural techniques and novel CICU models exist to mitigate the risk of ALI in CS patients with MCS,” they wrote. “Finally, escalation of care and support is vital to the continued success of any shock team and center.”

One coauthor has served as a consultant to Abbott. Another has served as a consultant to the Abiomed critical care advisory board. All other authors reported having no relevant financial relationships. Dr. Meraj has received research and grant funding from Abiomed, Medtronic, CSI, and Boston Scientific. Dr. O’Neill has received consulting/speaker honoraria from Abiomed, Boston Scientific, and Abbott.

A version of this article first appeared on Medscape.com.

Bacteria get the rack ... the towel rack

Obviously, bathrooms have germs. Some people are cleaner about their bathrooms than others, but in general most people just try not to think about the microscopic critters crawling about.

Now you would probably think that the toilet is the dirtiest part of the bathroom because that’s where ... you know, most of the business takes place. Or maybe you’d guess the floor. Truth be told, though, the dirtiest part of the bathroom is where the towels are hung.

pxfuel

Anti-vaxxers would like to be called ‘purebloods’

COVID-19 anti-vaxxers are an interesting bunch, to be kind. And TikTok is a wacky place. So you can just imagine that anti-vaxxer TikTok is a very strange place. The citizens of anti-vax TikTok have decided that the real reason so many people dislike them is branding. They consider anti-vaccination to be a negative word (duh), so they now want to be referred to as “purebloods.”

peterschreiber_media/iStock/Getty Images

Harry Potter doesn’t quite occupy the zeitgeist as it once did, so let’s give you a reminder: In the books, purebloods came from old wizarding families and claimed not to have any Muggle, or nonmagic, blood. While having pure wizard blood was no guarantee of being a villain, most of them were. In addition, it is made quite clear throughout the novels that having supposedly pure blood had no relevance on one’s wizarding ability. Pureblood was a meaningless title, and only the characters with small, cruel minds concerned themselves over it.

Perhaps the anti-vaxxers have decided that they want to be called the same thing. Maybe they just like the name. It does sound impressive and vaguely regal: Pureblood. Like something the nobles of medieval Europe might have used.

Critical-thinking skills may be in short supply here, or maybe the anti-vaxxers know exactly what they’re doing.
 

Hated broccoli? Blame your DNA

Were you that kid who would rather sit at the table for hours than eat your broccoli? Well, as much as your parents might have pushed you, new research suggests that it might be their fault you didn’t like it to begin with.

Hans Braxmeier/Pixabay

Investigators at Australia’s national science agency, CSIRO, recently reported that distaste for Brassica vegetables – broccoli, Brussels sprouts, cabbage, and cauliflower – can be traced to the oral microbiome.

These vegetables have a compound called S-methyl-L-cysteine sulfoxide that gives off sulfurous odors ... mmm, sulfurous ... when mixed with an enzyme in the plant, and that enzyme is also produced by bacteria in some people’s oral microbiomes. So why do adults tolerate these Brassica veggies more than children? It’s all about levels.

The researchers tested the idea by asking 98 child/parent pairs to rate the odors and by using gas chromatography-olfactometry-mass spectrometry to identify the odor-active compounds in both raw and steamed cauliflower and broccoli. The children whose saliva produced high levels of sulfur volatiles disliked Brassica vegetables the most, they reported, and the children with high levels of sulfur volatiles usually had parents who produced high levels.

Despite that connection, however, the distaste for raw Brassica seen in children wasn’t seen in adults.

Maybe it’s not that taste buds change as we age, maybe we just learn to tolerate the sulfurousness.

Bacteria get the rack ... the towel rack

Obviously, bathrooms have germs. Some people are cleaner about their bathrooms than others, but in general most people just try not to think about the microscopic critters crawling about.

Now you would probably think that the toilet is the dirtiest part of the bathroom because that’s where ... you know, most of the business takes place. Or maybe you’d guess the floor. Truth be told, though, the dirtiest part of the bathroom is where the towels are hung.

pxfuel

Anti-vaxxers would like to be called ‘purebloods’

COVID-19 anti-vaxxers are an interesting bunch, to be kind. And TikTok is a wacky place. So you can just imagine that anti-vaxxer TikTok is a very strange place. The citizens of anti-vax TikTok have decided that the real reason so many people dislike them is branding. They consider anti-vaccination to be a negative word (duh), so they now want to be referred to as “purebloods.”

peterschreiber_media/iStock/Getty Images

Harry Potter doesn’t quite occupy the zeitgeist as it once did, so let’s give you a reminder: In the books, purebloods came from old wizarding families and claimed not to have any Muggle, or nonmagic, blood. While having pure wizard blood was no guarantee of being a villain, most of them were. In addition, it is made quite clear throughout the novels that having supposedly pure blood had no relevance on one’s wizarding ability. Pureblood was a meaningless title, and only the characters with small, cruel minds concerned themselves over it.

Perhaps the anti-vaxxers have decided that they want to be called the same thing. Maybe they just like the name. It does sound impressive and vaguely regal: Pureblood. Like something the nobles of medieval Europe might have used.

Critical-thinking skills may be in short supply here, or maybe the anti-vaxxers know exactly what they’re doing.
 

Hated broccoli? Blame your DNA

Were you that kid who would rather sit at the table for hours than eat your broccoli? Well, as much as your parents might have pushed you, new research suggests that it might be their fault you didn’t like it to begin with.

Hans Braxmeier/Pixabay

Investigators at Australia’s national science agency, CSIRO, recently reported that distaste for Brassica vegetables – broccoli, Brussels sprouts, cabbage, and cauliflower – can be traced to the oral microbiome.

These vegetables have a compound called S-methyl-L-cysteine sulfoxide that gives off sulfurous odors ... mmm, sulfurous ... when mixed with an enzyme in the plant, and that enzyme is also produced by bacteria in some people’s oral microbiomes. So why do adults tolerate these Brassica veggies more than children? It’s all about levels.

The researchers tested the idea by asking 98 child/parent pairs to rate the odors and by using gas chromatography-olfactometry-mass spectrometry to identify the odor-active compounds in both raw and steamed cauliflower and broccoli. The children whose saliva produced high levels of sulfur volatiles disliked Brassica vegetables the most, they reported, and the children with high levels of sulfur volatiles usually had parents who produced high levels.

Despite that connection, however, the distaste for raw Brassica seen in children wasn’t seen in adults.

Maybe it’s not that taste buds change as we age, maybe we just learn to tolerate the sulfurousness.

Bacteria get the rack ... the towel rack

Obviously, bathrooms have germs. Some people are cleaner about their bathrooms than others, but in general most people just try not to think about the microscopic critters crawling about.

Now you would probably think that the toilet is the dirtiest part of the bathroom because that’s where ... you know, most of the business takes place. Or maybe you’d guess the floor. Truth be told, though, the dirtiest part of the bathroom is where the towels are hung.

pxfuel

Anti-vaxxers would like to be called ‘purebloods’

COVID-19 anti-vaxxers are an interesting bunch, to be kind. And TikTok is a wacky place. So you can just imagine that anti-vaxxer TikTok is a very strange place. The citizens of anti-vax TikTok have decided that the real reason so many people dislike them is branding. They consider anti-vaccination to be a negative word (duh), so they now want to be referred to as “purebloods.”

peterschreiber_media/iStock/Getty Images

Harry Potter doesn’t quite occupy the zeitgeist as it once did, so let’s give you a reminder: In the books, purebloods came from old wizarding families and claimed not to have any Muggle, or nonmagic, blood. While having pure wizard blood was no guarantee of being a villain, most of them were. In addition, it is made quite clear throughout the novels that having supposedly pure blood had no relevance on one’s wizarding ability. Pureblood was a meaningless title, and only the characters with small, cruel minds concerned themselves over it.

Perhaps the anti-vaxxers have decided that they want to be called the same thing. Maybe they just like the name. It does sound impressive and vaguely regal: Pureblood. Like something the nobles of medieval Europe might have used.

Critical-thinking skills may be in short supply here, or maybe the anti-vaxxers know exactly what they’re doing.
 

Hated broccoli? Blame your DNA

Were you that kid who would rather sit at the table for hours than eat your broccoli? Well, as much as your parents might have pushed you, new research suggests that it might be their fault you didn’t like it to begin with.

Hans Braxmeier/Pixabay

Investigators at Australia’s national science agency, CSIRO, recently reported that distaste for Brassica vegetables – broccoli, Brussels sprouts, cabbage, and cauliflower – can be traced to the oral microbiome.

These vegetables have a compound called S-methyl-L-cysteine sulfoxide that gives off sulfurous odors ... mmm, sulfurous ... when mixed with an enzyme in the plant, and that enzyme is also produced by bacteria in some people’s oral microbiomes. So why do adults tolerate these Brassica veggies more than children? It’s all about levels.

The researchers tested the idea by asking 98 child/parent pairs to rate the odors and by using gas chromatography-olfactometry-mass spectrometry to identify the odor-active compounds in both raw and steamed cauliflower and broccoli. The children whose saliva produced high levels of sulfur volatiles disliked Brassica vegetables the most, they reported, and the children with high levels of sulfur volatiles usually had parents who produced high levels.

Despite that connection, however, the distaste for raw Brassica seen in children wasn’t seen in adults.

Maybe it’s not that taste buds change as we age, maybe we just learn to tolerate the sulfurousness.

In childhood patients with T-cell acute lymphoblastic leukemia (T-ALL) the hypomethylation status of the arginine synthetase (ASNS) gene was significantly associated with poor therapeutic outcome, according to the results of a Japanese cohort study published online in Blood Advances.

Researchers Koshi Akahane, PHD, of the University of Yamanashi, Kofu, Japan, and colleagues conducted a comprehensive genetic analysis of diagnostic samples of 22 cell lines from childhood patients with T-ALL in Japan.

They also correlated known methylation status with outcomes in two large patient cohorts of Japanese children with T-ALL: the Tokyo Children’s Cancer Study Group (n = 57) and the Japan Association of Childhood Leukemia Study Group (n = 20).
 

Methylation results

For the 22 cell lines tested, sequencing technology revealed a stepwise allele-specific methylation of the ASNS gene. Mean ASNS gene expression level was significantly upregulated in 14 weakly methylated cell lines (P = .0001), but not significantly upregulated in 3 intermediately methylated cell lines (P = .25) or in 5 highly methylated cell lines (P = .063).

Among the 77 patient cohorts, 20 (26%) samples showed high methylation (> 66.7%), while 15 (19%) samples and 42 (55%) samples showed intermediate (33.3%-66.7%) and weak (< 33.3%) methylation status, respectively.

For the 75 patients where information was provided on outcomes, 25 patients (33%) showed induction failure or disease relapse. A highly methylated status of the ASNS gene was significantly more common in non-refractory/relapse cases (18/50 cases, 36%), while intermediately or weakly methylated status was more common in refractory/relapsed cases (23/25 cases, 92 %; P = .0001). In a log-rank test, the patients with weakly methylated status of the ASNS gene showed significantly shorter event-free survival and overall survival than the patients with an intermediate or highly methylated status (P = .00012 and P = .00016, respectively).
 

Asparaginase sensitivity

Asparaginase treatment is a key component of chemotherapy for patients with T-ALL, according to the researchers. Asparaginase depletes serum asparagine by deamination into aspartic acid. While normal hematopoietic cells can survive due to ASNS activity, leukemia cells are expected to undergo apoptosis due to silencing of the ASNS gene.

ASNS hypomethylation status was significantly associated with poor therapeutic outcome, and all cases with the poor prognostic SPI1 fusion exclusively showed ASNS hypomethylation status. These observations demonstrate that ASNS hypomethylation status is associated with asparaginase resistance, the researchers stated.

“ASNS methylation status may be a clinically useful biomarker to predict sensitivity to asparaginase therapy in T-ALL patients. Considering the severe complications of asparaginase therapy particularly in adolescents and adults, stratifying prospective asparaginase therapy according to ASNS methylation status may be beneficial for safer and more effective treatment of T-ALL patients,” the researchers concluded.

The authors reported that they had no conflicts of interest.

[email protected]

In childhood patients with T-cell acute lymphoblastic leukemia (T-ALL) the hypomethylation status of the arginine synthetase (ASNS) gene was significantly associated with poor therapeutic outcome, according to the results of a Japanese cohort study published online in Blood Advances.

Researchers Koshi Akahane, PHD, of the University of Yamanashi, Kofu, Japan, and colleagues conducted a comprehensive genetic analysis of diagnostic samples of 22 cell lines from childhood patients with T-ALL in Japan.

They also correlated known methylation status with outcomes in two large patient cohorts of Japanese children with T-ALL: the Tokyo Children’s Cancer Study Group (n = 57) and the Japan Association of Childhood Leukemia Study Group (n = 20).
 

Methylation results

For the 22 cell lines tested, sequencing technology revealed a stepwise allele-specific methylation of the ASNS gene. Mean ASNS gene expression level was significantly upregulated in 14 weakly methylated cell lines (P = .0001), but not significantly upregulated in 3 intermediately methylated cell lines (P = .25) or in 5 highly methylated cell lines (P = .063).

Among the 77 patient cohorts, 20 (26%) samples showed high methylation (> 66.7%), while 15 (19%) samples and 42 (55%) samples showed intermediate (33.3%-66.7%) and weak (< 33.3%) methylation status, respectively.

For the 75 patients where information was provided on outcomes, 25 patients (33%) showed induction failure or disease relapse. A highly methylated status of the ASNS gene was significantly more common in non-refractory/relapse cases (18/50 cases, 36%), while intermediately or weakly methylated status was more common in refractory/relapsed cases (23/25 cases, 92 %; P = .0001). In a log-rank test, the patients with weakly methylated status of the ASNS gene showed significantly shorter event-free survival and overall survival than the patients with an intermediate or highly methylated status (P = .00012 and P = .00016, respectively).
 

Asparaginase sensitivity

Asparaginase treatment is a key component of chemotherapy for patients with T-ALL, according to the researchers. Asparaginase depletes serum asparagine by deamination into aspartic acid. While normal hematopoietic cells can survive due to ASNS activity, leukemia cells are expected to undergo apoptosis due to silencing of the ASNS gene.

ASNS hypomethylation status was significantly associated with poor therapeutic outcome, and all cases with the poor prognostic SPI1 fusion exclusively showed ASNS hypomethylation status. These observations demonstrate that ASNS hypomethylation status is associated with asparaginase resistance, the researchers stated.

“ASNS methylation status may be a clinically useful biomarker to predict sensitivity to asparaginase therapy in T-ALL patients. Considering the severe complications of asparaginase therapy particularly in adolescents and adults, stratifying prospective asparaginase therapy according to ASNS methylation status may be beneficial for safer and more effective treatment of T-ALL patients,” the researchers concluded.

The authors reported that they had no conflicts of interest.

[email protected]

In childhood patients with T-cell acute lymphoblastic leukemia (T-ALL) the hypomethylation status of the arginine synthetase (ASNS) gene was significantly associated with poor therapeutic outcome, according to the results of a Japanese cohort study published online in Blood Advances.

Researchers Koshi Akahane, PHD, of the University of Yamanashi, Kofu, Japan, and colleagues conducted a comprehensive genetic analysis of diagnostic samples of 22 cell lines from childhood patients with T-ALL in Japan.

They also correlated known methylation status with outcomes in two large patient cohorts of Japanese children with T-ALL: the Tokyo Children’s Cancer Study Group (n = 57) and the Japan Association of Childhood Leukemia Study Group (n = 20).
 

Methylation results

For the 22 cell lines tested, sequencing technology revealed a stepwise allele-specific methylation of the ASNS gene. Mean ASNS gene expression level was significantly upregulated in 14 weakly methylated cell lines (P = .0001), but not significantly upregulated in 3 intermediately methylated cell lines (P = .25) or in 5 highly methylated cell lines (P = .063).

Among the 77 patient cohorts, 20 (26%) samples showed high methylation (> 66.7%), while 15 (19%) samples and 42 (55%) samples showed intermediate (33.3%-66.7%) and weak (< 33.3%) methylation status, respectively.

For the 75 patients where information was provided on outcomes, 25 patients (33%) showed induction failure or disease relapse. A highly methylated status of the ASNS gene was significantly more common in non-refractory/relapse cases (18/50 cases, 36%), while intermediately or weakly methylated status was more common in refractory/relapsed cases (23/25 cases, 92 %; P = .0001). In a log-rank test, the patients with weakly methylated status of the ASNS gene showed significantly shorter event-free survival and overall survival than the patients with an intermediate or highly methylated status (P = .00012 and P = .00016, respectively).
 

Asparaginase sensitivity

Asparaginase treatment is a key component of chemotherapy for patients with T-ALL, according to the researchers. Asparaginase depletes serum asparagine by deamination into aspartic acid. While normal hematopoietic cells can survive due to ASNS activity, leukemia cells are expected to undergo apoptosis due to silencing of the ASNS gene.

ASNS hypomethylation status was significantly associated with poor therapeutic outcome, and all cases with the poor prognostic SPI1 fusion exclusively showed ASNS hypomethylation status. These observations demonstrate that ASNS hypomethylation status is associated with asparaginase resistance, the researchers stated.

“ASNS methylation status may be a clinically useful biomarker to predict sensitivity to asparaginase therapy in T-ALL patients. Considering the severe complications of asparaginase therapy particularly in adolescents and adults, stratifying prospective asparaginase therapy according to ASNS methylation status may be beneficial for safer and more effective treatment of T-ALL patients,” the researchers concluded.

The authors reported that they had no conflicts of interest.

[email protected]

The U.S. Food and Drug Administration (FDA) late Sept. 22 granted emergency use authorization (EUA) for a third dose of the Pfizer COVID-19 vaccine for those over the age of 65 and a wide swath of Americans at higher risk for infection.

The agency’s move comes as a Centers for Disease Control and Prevention (CDC) panel ended the first day of a 2-day meeting. That panel, the Advisory Committee on Immunization Practices (ACIP), is expected to vote Sept. 23 to instruct doctors on how to administer the boosters.

The FDA officially authorized the vaccine not only for individuals 65 and older, but also for people 18 through 64 years of age who are at high risk for severe illness from the coronavirus, including essential workers whose jobs increase their risk for infection.

“After considering the totality of the available scientific evidence and the deliberations of our advisory committee of independent, external experts, the FDA amended the EUA for the Pfizer-BioNTech COVID-19 vaccine to allow for a booster dose in certain populations such as health care workers, teachers and daycare staff, grocery workers and those in homeless shelters or prisons, among others,” Acting FDA Commissioner Janet Woodcock, MD, said in a news release.

The recommendations align with those from an FDA advisory panel Sept. 17.

The agency determined that the benefits of a booster dose outweigh the risks for people now authorized to receive it, according to the news release.
 

Other questions remain

So, how will this work? That was the main question weighing on the minds of the CDC’s ACIP during their first day of a 2-day meeting where they are expected to make recommendations on booster doses for Americans.

The panel discussed situations the FDA will still need to consider, such as what should be done for Americans who were originally vaccinated with a Moderna or Johnson and Johnson vaccine, but are not covered under the revised EUA, which is only for those people who received Pfizer’s two-dose vaccine regimen.

“That’s going to leave half of the people immunized in this age group having received the vaccine and being told that they’re at risk now for waning immunity and hospitalization unable to get a booster dose,” said committee member Sarah S. Long, MD, a professor of pediatrics at Drexel University College of Medicine in Philadelphia. “So that’s a big public health panic that we would like to avoid.”

Johnson and Johnson recently reported that second doses of its vaccine boosted its efficacy to almost 94% against COVID-19. A new study, published ahead of peer review, suggests that the efficacy of the single-dose Johnson and Johnson shot has fallen to about 78% against symptomatic infection during the Delta surge.

Moderna has applied for permission to market third doses of its vaccine in the United States, but the FDA has given no timeline on when it might make a decision. 

Doran Fink, MD, PhD, deputy director of the FDA’s Division of Vaccines and Related Products Applications, a representative advising the committee Sept. 22, said the agency was working as rapidly as possible on Moderna’s submission.

Regarding the question of whether it was OK to mix vaccines, rather than match them, Dr. Fink said there are currently not enough data available to inform that decision.

Those answers are coming, though. John Beigel, MD, associate director of clinical research at the National Institute of Allergy and Infectious Diseases, revealed that the federal government has a study underway to see what happens when the vaccines are mixed with each other. 

He said that data from the study would be available later this fall, and would certainly help physicians and other healthcare providers know whether it’s effective or safe to use them interchangeably.
 

Correlates of immunity

The ACIP left much of its schedule open Sept. 23 to discuss extra Pfizer doses and vote on how they should be used.

Pfizer had originally applied to the FDA for an amendment to its FDA approval, which would have given doctors a freer hand to prescribe third doses as they saw fit, in patients as young as 16.

But the FDA’s Vaccines and Related Biological Products Advisory Committee voted Sept. 17 against granting the amendment. The committee was particularly concerned about the lack of data in teens ages 16 and 17, who have the highest risk for a rare side effect that causes heart inflammation that requires hospital care.

Instead, they recommended — and the FDA agreed per their decision Sept. 22 — that third doses should be given to people at higher risk for severe breakthrough infections because of advanced age or because they work in an occupation that puts them at high risk for exposure. 

The CDC panel heard important presentations on new science that is helping to identify the correlates of immunity. 

The correlates of immunity are biomarkers that can be measured in blood that help doctors understand how protected a person may be against COVID-19. These markers of immunity are not yet known for the COVID-19 vaccines.

Emerging evidence shows that booster doses of the Pfizer vaccine cause front-line immune defenders — called binding antibodies — to roughly triple soon after a person gets the third shot. 

Neutralizing antibodies also jump soon after two vaccine doses, but they fall over time, which is natural. The body doesn’t need these foot soldiers to be on guard all the time, so they go away. 

The body retains its memory of how to make them, however, so they can quickly be marshaled again, if needed.

Early studies suggest that antibodies account for about two thirds of a person’s protection against COVID, while the longer-lasting T-cells and B-cells account for about one third.

After the antibody levels fall, it may take a few days to recreate this army. In the meantime, the virus can try to break in. This can cause symptoms, which can make a person feel terrible, but for the most part, vaccinated individuals don’t need hospital care and are nearly always protected from dying — even against the Delta variant.

Those most likely to be at risk for a breakthrough infection are older, because immune function wanes with age.
 

Essential workers

Essential workers, such as those who work in healthcare, may also benefit from high antibody levels, which can minimize symptoms and help them get back to work more quickly.

Helen Talbot, MD, MPH, an associate professor of medicine at Vanderbilt University Medical Center in Nashville, said that in her area staffing levels are critical right now.

“I’m actually sitting in one of the deepest red [states] with high rates of COVID. We don’t have enough health care workers currently to take care of the unvaccinated,” she said. 

“When we have beds, we are often missing staff, and so the idea of vaccinating health care workers is to be a little bit different than our idea of using vaccines in the general population,” Dr. Talbot said.

Oliver Brooks, MD, chief medical officer of the Watts Healthcare Corporation in Los Angeles, said he was in favor of making a public statement about the temporary nature of the potential recommendations Sept. 23, because they probably won’t cover all who might need a third shot.

“We may want to go on record stating what it is that would allow us to broaden our recommendation or restrict our recommendation,” Dr. Brooks said.

The considerations of who should get an extra dose are not always straightforward.

New modeling by the Harvard TH Chan School of Public Health and the CDC to assist the government’s decisions on boosters had a surprise finding: in nursing homes, it’s more effective to vaccinate healthcare workers than it is to give booster doses to these residents. Nursing homes are at the mercy of community transmission. 

In regions with high transmission, it’s easy for a caregiver to bring the virus into a facility — so the models found that the transmission from these workers is a more effective strategy than giving third doses to the already highly vaccinated group of seniors who live in them.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration (FDA) late Sept. 22 granted emergency use authorization (EUA) for a third dose of the Pfizer COVID-19 vaccine for those over the age of 65 and a wide swath of Americans at higher risk for infection.

The agency’s move comes as a Centers for Disease Control and Prevention (CDC) panel ended the first day of a 2-day meeting. That panel, the Advisory Committee on Immunization Practices (ACIP), is expected to vote Sept. 23 to instruct doctors on how to administer the boosters.

The FDA officially authorized the vaccine not only for individuals 65 and older, but also for people 18 through 64 years of age who are at high risk for severe illness from the coronavirus, including essential workers whose jobs increase their risk for infection.

“After considering the totality of the available scientific evidence and the deliberations of our advisory committee of independent, external experts, the FDA amended the EUA for the Pfizer-BioNTech COVID-19 vaccine to allow for a booster dose in certain populations such as health care workers, teachers and daycare staff, grocery workers and those in homeless shelters or prisons, among others,” Acting FDA Commissioner Janet Woodcock, MD, said in a news release.

The recommendations align with those from an FDA advisory panel Sept. 17.

The agency determined that the benefits of a booster dose outweigh the risks for people now authorized to receive it, according to the news release.
 

Other questions remain

So, how will this work? That was the main question weighing on the minds of the CDC’s ACIP during their first day of a 2-day meeting where they are expected to make recommendations on booster doses for Americans.

The panel discussed situations the FDA will still need to consider, such as what should be done for Americans who were originally vaccinated with a Moderna or Johnson and Johnson vaccine, but are not covered under the revised EUA, which is only for those people who received Pfizer’s two-dose vaccine regimen.

“That’s going to leave half of the people immunized in this age group having received the vaccine and being told that they’re at risk now for waning immunity and hospitalization unable to get a booster dose,” said committee member Sarah S. Long, MD, a professor of pediatrics at Drexel University College of Medicine in Philadelphia. “So that’s a big public health panic that we would like to avoid.”

Johnson and Johnson recently reported that second doses of its vaccine boosted its efficacy to almost 94% against COVID-19. A new study, published ahead of peer review, suggests that the efficacy of the single-dose Johnson and Johnson shot has fallen to about 78% against symptomatic infection during the Delta surge.

Moderna has applied for permission to market third doses of its vaccine in the United States, but the FDA has given no timeline on when it might make a decision. 

Doran Fink, MD, PhD, deputy director of the FDA’s Division of Vaccines and Related Products Applications, a representative advising the committee Sept. 22, said the agency was working as rapidly as possible on Moderna’s submission.

Regarding the question of whether it was OK to mix vaccines, rather than match them, Dr. Fink said there are currently not enough data available to inform that decision.

Those answers are coming, though. John Beigel, MD, associate director of clinical research at the National Institute of Allergy and Infectious Diseases, revealed that the federal government has a study underway to see what happens when the vaccines are mixed with each other. 

He said that data from the study would be available later this fall, and would certainly help physicians and other healthcare providers know whether it’s effective or safe to use them interchangeably.
 

Correlates of immunity

The ACIP left much of its schedule open Sept. 23 to discuss extra Pfizer doses and vote on how they should be used.

Pfizer had originally applied to the FDA for an amendment to its FDA approval, which would have given doctors a freer hand to prescribe third doses as they saw fit, in patients as young as 16.

But the FDA’s Vaccines and Related Biological Products Advisory Committee voted Sept. 17 against granting the amendment. The committee was particularly concerned about the lack of data in teens ages 16 and 17, who have the highest risk for a rare side effect that causes heart inflammation that requires hospital care.

Instead, they recommended — and the FDA agreed per their decision Sept. 22 — that third doses should be given to people at higher risk for severe breakthrough infections because of advanced age or because they work in an occupation that puts them at high risk for exposure. 

The CDC panel heard important presentations on new science that is helping to identify the correlates of immunity. 

The correlates of immunity are biomarkers that can be measured in blood that help doctors understand how protected a person may be against COVID-19. These markers of immunity are not yet known for the COVID-19 vaccines.

Emerging evidence shows that booster doses of the Pfizer vaccine cause front-line immune defenders — called binding antibodies — to roughly triple soon after a person gets the third shot. 

Neutralizing antibodies also jump soon after two vaccine doses, but they fall over time, which is natural. The body doesn’t need these foot soldiers to be on guard all the time, so they go away. 

The body retains its memory of how to make them, however, so they can quickly be marshaled again, if needed.

Early studies suggest that antibodies account for about two thirds of a person’s protection against COVID, while the longer-lasting T-cells and B-cells account for about one third.

After the antibody levels fall, it may take a few days to recreate this army. In the meantime, the virus can try to break in. This can cause symptoms, which can make a person feel terrible, but for the most part, vaccinated individuals don’t need hospital care and are nearly always protected from dying — even against the Delta variant.

Those most likely to be at risk for a breakthrough infection are older, because immune function wanes with age.
 

Essential workers

Essential workers, such as those who work in healthcare, may also benefit from high antibody levels, which can minimize symptoms and help them get back to work more quickly.

Helen Talbot, MD, MPH, an associate professor of medicine at Vanderbilt University Medical Center in Nashville, said that in her area staffing levels are critical right now.

“I’m actually sitting in one of the deepest red [states] with high rates of COVID. We don’t have enough health care workers currently to take care of the unvaccinated,” she said. 

“When we have beds, we are often missing staff, and so the idea of vaccinating health care workers is to be a little bit different than our idea of using vaccines in the general population,” Dr. Talbot said.

Oliver Brooks, MD, chief medical officer of the Watts Healthcare Corporation in Los Angeles, said he was in favor of making a public statement about the temporary nature of the potential recommendations Sept. 23, because they probably won’t cover all who might need a third shot.

“We may want to go on record stating what it is that would allow us to broaden our recommendation or restrict our recommendation,” Dr. Brooks said.

The considerations of who should get an extra dose are not always straightforward.

New modeling by the Harvard TH Chan School of Public Health and the CDC to assist the government’s decisions on boosters had a surprise finding: in nursing homes, it’s more effective to vaccinate healthcare workers than it is to give booster doses to these residents. Nursing homes are at the mercy of community transmission. 

In regions with high transmission, it’s easy for a caregiver to bring the virus into a facility — so the models found that the transmission from these workers is a more effective strategy than giving third doses to the already highly vaccinated group of seniors who live in them.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration (FDA) late Sept. 22 granted emergency use authorization (EUA) for a third dose of the Pfizer COVID-19 vaccine for those over the age of 65 and a wide swath of Americans at higher risk for infection.

The agency’s move comes as a Centers for Disease Control and Prevention (CDC) panel ended the first day of a 2-day meeting. That panel, the Advisory Committee on Immunization Practices (ACIP), is expected to vote Sept. 23 to instruct doctors on how to administer the boosters.

The FDA officially authorized the vaccine not only for individuals 65 and older, but also for people 18 through 64 years of age who are at high risk for severe illness from the coronavirus, including essential workers whose jobs increase their risk for infection.

“After considering the totality of the available scientific evidence and the deliberations of our advisory committee of independent, external experts, the FDA amended the EUA for the Pfizer-BioNTech COVID-19 vaccine to allow for a booster dose in certain populations such as health care workers, teachers and daycare staff, grocery workers and those in homeless shelters or prisons, among others,” Acting FDA Commissioner Janet Woodcock, MD, said in a news release.

The recommendations align with those from an FDA advisory panel Sept. 17.

The agency determined that the benefits of a booster dose outweigh the risks for people now authorized to receive it, according to the news release.
 

Other questions remain

So, how will this work? That was the main question weighing on the minds of the CDC’s ACIP during their first day of a 2-day meeting where they are expected to make recommendations on booster doses for Americans.

The panel discussed situations the FDA will still need to consider, such as what should be done for Americans who were originally vaccinated with a Moderna or Johnson and Johnson vaccine, but are not covered under the revised EUA, which is only for those people who received Pfizer’s two-dose vaccine regimen.

“That’s going to leave half of the people immunized in this age group having received the vaccine and being told that they’re at risk now for waning immunity and hospitalization unable to get a booster dose,” said committee member Sarah S. Long, MD, a professor of pediatrics at Drexel University College of Medicine in Philadelphia. “So that’s a big public health panic that we would like to avoid.”

Johnson and Johnson recently reported that second doses of its vaccine boosted its efficacy to almost 94% against COVID-19. A new study, published ahead of peer review, suggests that the efficacy of the single-dose Johnson and Johnson shot has fallen to about 78% against symptomatic infection during the Delta surge.

Moderna has applied for permission to market third doses of its vaccine in the United States, but the FDA has given no timeline on when it might make a decision. 

Doran Fink, MD, PhD, deputy director of the FDA’s Division of Vaccines and Related Products Applications, a representative advising the committee Sept. 22, said the agency was working as rapidly as possible on Moderna’s submission.

Regarding the question of whether it was OK to mix vaccines, rather than match them, Dr. Fink said there are currently not enough data available to inform that decision.

Those answers are coming, though. John Beigel, MD, associate director of clinical research at the National Institute of Allergy and Infectious Diseases, revealed that the federal government has a study underway to see what happens when the vaccines are mixed with each other. 

He said that data from the study would be available later this fall, and would certainly help physicians and other healthcare providers know whether it’s effective or safe to use them interchangeably.
 

Correlates of immunity

The ACIP left much of its schedule open Sept. 23 to discuss extra Pfizer doses and vote on how they should be used.

Pfizer had originally applied to the FDA for an amendment to its FDA approval, which would have given doctors a freer hand to prescribe third doses as they saw fit, in patients as young as 16.

But the FDA’s Vaccines and Related Biological Products Advisory Committee voted Sept. 17 against granting the amendment. The committee was particularly concerned about the lack of data in teens ages 16 and 17, who have the highest risk for a rare side effect that causes heart inflammation that requires hospital care.

Instead, they recommended — and the FDA agreed per their decision Sept. 22 — that third doses should be given to people at higher risk for severe breakthrough infections because of advanced age or because they work in an occupation that puts them at high risk for exposure. 

The CDC panel heard important presentations on new science that is helping to identify the correlates of immunity. 

The correlates of immunity are biomarkers that can be measured in blood that help doctors understand how protected a person may be against COVID-19. These markers of immunity are not yet known for the COVID-19 vaccines.

Emerging evidence shows that booster doses of the Pfizer vaccine cause front-line immune defenders — called binding antibodies — to roughly triple soon after a person gets the third shot. 

Neutralizing antibodies also jump soon after two vaccine doses, but they fall over time, which is natural. The body doesn’t need these foot soldiers to be on guard all the time, so they go away. 

The body retains its memory of how to make them, however, so they can quickly be marshaled again, if needed.

Early studies suggest that antibodies account for about two thirds of a person’s protection against COVID, while the longer-lasting T-cells and B-cells account for about one third.

After the antibody levels fall, it may take a few days to recreate this army. In the meantime, the virus can try to break in. This can cause symptoms, which can make a person feel terrible, but for the most part, vaccinated individuals don’t need hospital care and are nearly always protected from dying — even against the Delta variant.

Those most likely to be at risk for a breakthrough infection are older, because immune function wanes with age.
 

Essential workers

Essential workers, such as those who work in healthcare, may also benefit from high antibody levels, which can minimize symptoms and help them get back to work more quickly.

Helen Talbot, MD, MPH, an associate professor of medicine at Vanderbilt University Medical Center in Nashville, said that in her area staffing levels are critical right now.

“I’m actually sitting in one of the deepest red [states] with high rates of COVID. We don’t have enough health care workers currently to take care of the unvaccinated,” she said. 

“When we have beds, we are often missing staff, and so the idea of vaccinating health care workers is to be a little bit different than our idea of using vaccines in the general population,” Dr. Talbot said.

Oliver Brooks, MD, chief medical officer of the Watts Healthcare Corporation in Los Angeles, said he was in favor of making a public statement about the temporary nature of the potential recommendations Sept. 23, because they probably won’t cover all who might need a third shot.

“We may want to go on record stating what it is that would allow us to broaden our recommendation or restrict our recommendation,” Dr. Brooks said.

The considerations of who should get an extra dose are not always straightforward.

New modeling by the Harvard TH Chan School of Public Health and the CDC to assist the government’s decisions on boosters had a surprise finding: in nursing homes, it’s more effective to vaccinate healthcare workers than it is to give booster doses to these residents. Nursing homes are at the mercy of community transmission. 

In regions with high transmission, it’s easy for a caregiver to bring the virus into a facility — so the models found that the transmission from these workers is a more effective strategy than giving third doses to the already highly vaccinated group of seniors who live in them.

A version of this article first appeared on Medscape.com.

Cobra the dog has been hard at work at the Miami International Airport, sniffing masks proffered by American Airlines employees making their way through a security checkpoint. If she identifies a specific scent, she’ll let her handler know simply by sitting down. When this good girl sits, that means Cobra has detected an olfactory signal of the coronavirus, the virus that causes COVID-19.

Cobra, a Belgian Malinois, is one of two canines – her partner is One Betta, a Dutch shepherd – working this checkpoint at Miami International. They are part of a pilot program with the Global Forensic and Justice Center at Florida International University, using the detection dogs as a quick screen for people who have COVID-19.

Their detection rate is high, at more than 98%, and the program has been such a success that it’s being extended for another month at the airport.

If these two dogs continue to accurately detect COVID-19, they and other canines with similar training could be deployed to other places with lots of people coming and going at once, including other airports or even schools. In fact, COVID-sniffing dogs are in use in some university classrooms already.

But building up a big brigade of live animals as disease detectors involves some thorny issues, including where the animals retire once their careers are complete.

“When COVID first arose, we said let’s see if we can train these two dogs on either the virus or the odor of COVID-19,” says Kenneth Furton, PhD, a professor of chemistry and biochemistry, provost, and executive vice president at Florida International University.

His team had completed a study with what he calls “medical detector dogs,” animals that might be able to detect the odor of someone having a seizure. That led them to see how well the animals could detect other kinds of disorders.

Training a dog to sniff out specific odors starts with getting them to understand the task in general. Dr. Furton says that the animals first are trained to grasp that their job is to detect one odor among many. Once the dogs grasp that, they can be trained on just about any specific odor.

In fact, in addition to detecting seizures, dogs reportedly have been able to identify diabetes and even some cancers, such as ovarian cancer.

Dr. Furton says he’s not aware of any previous use of dogs to screen for infectious disease. That may simply be because nothing recently has struck with the global ferocity of COVID, driving humans to turn to their best friends for help.

Cobra and One Betta got their start learning to identify the presence of laurel wilt, a fungus that attacks avocado trees and kills them, costing Florida growers millions. With that expertise under their collars, the two dogs need only a few weeks to get good at detecting other smells assigned to them.
 

Training the dogs, safely

To train Cobra and One Betta on COVID-19 odors, Dr. Furton’s team first acquired mask samples from people hospitalized with COVID and people who did not have the disease. In battling the viruses, people produce certain chemicals that they exhale every time they breathe. When Dr. Furton and his colleagues compared the exhaled components trapped in the masks, they found differences between masks from people with COVID and those without.

Having confirmed that exhalations can be COVID-specific, the research team trained four dogs – Cobra, One Betta, Hubble, and Max – to detect masks from people with COVID among an assortment of mask choices. Before this step, though, the researchers made sure that any trace of active virus was destroyed by ultraviolet light so that the dogs would not be infected.

Each time the dogs accurately selected a mask from a COVID patient, their reward was access to a favorite toy: A red ball to chew on. Although all four dogs performed very well, yes, they did, Cobra and One Betta showed the most accuracy, outperforming their training colleagues. From their training scores, Cobra ranked first, with 99.45% accuracy. Despite her name, says Dr. Furton, One Betta was “not one better,” coming in second at 98.1%, which is still quite high.

Both dogs are good at their airport screening duties. If one of them sits after sniffing a mask at the checkpoint, the next step is for the mask owner to be tested.

From Aug. 23 to Sept. 8, the two canines screened 1,093 people during 8 working days, alerting on only one case, according to Greg Chin, communications director for the Miami-Dade Aviation Department. That person had tested positive for COVID 2 weeks earlier and was returning to work after quarantine, and their rapid test after the dog alerted was negative.

Dr. Furton says that there are some reports of dogs also alerting before tests can show a positive result, suggesting the dogs’ odor detection can be more precise. They hope to expand their study to see how tight the window of dog-based detection is.

For now, the detector dogs are doing so well that the program has been extended for 30 more days, Mr. Chin says.

As promising as this seems, using dogs for screening carries some logistical and ethical tangles. Training a canine army to deploy for high-volume detection points means that once the work is done, a whole lot of dogs will need a safe place to retire. In addition, the initial training takes several months, says Dr. Furton, whereas if a device were developed for screening, manufacturing could likely be ramped up quickly to meet demand.

The dogs might not need to retire right away, though.

“We envision that they could be redeployed to another type of detection for another infectious disease” if the need arises, Dr. Furton says. But in the end, when working with dogs, he says, there is “a moral connection that you don’t have to deal with using instruments.”

Although the pilot screening at Miami International is the first airport test, the dogs have also done this work in other venues, including at a state emergency operations center in Florida and in some university classrooms, says Dr. Furton.

A version of this article first appeared on WebMD.com.

Cobra the dog has been hard at work at the Miami International Airport, sniffing masks proffered by American Airlines employees making their way through a security checkpoint. If she identifies a specific scent, she’ll let her handler know simply by sitting down. When this good girl sits, that means Cobra has detected an olfactory signal of the coronavirus, the virus that causes COVID-19.

Cobra, a Belgian Malinois, is one of two canines – her partner is One Betta, a Dutch shepherd – working this checkpoint at Miami International. They are part of a pilot program with the Global Forensic and Justice Center at Florida International University, using the detection dogs as a quick screen for people who have COVID-19.

Their detection rate is high, at more than 98%, and the program has been such a success that it’s being extended for another month at the airport.

If these two dogs continue to accurately detect COVID-19, they and other canines with similar training could be deployed to other places with lots of people coming and going at once, including other airports or even schools. In fact, COVID-sniffing dogs are in use in some university classrooms already.

But building up a big brigade of live animals as disease detectors involves some thorny issues, including where the animals retire once their careers are complete.

“When COVID first arose, we said let’s see if we can train these two dogs on either the virus or the odor of COVID-19,” says Kenneth Furton, PhD, a professor of chemistry and biochemistry, provost, and executive vice president at Florida International University.

His team had completed a study with what he calls “medical detector dogs,” animals that might be able to detect the odor of someone having a seizure. That led them to see how well the animals could detect other kinds of disorders.

Training a dog to sniff out specific odors starts with getting them to understand the task in general. Dr. Furton says that the animals first are trained to grasp that their job is to detect one odor among many. Once the dogs grasp that, they can be trained on just about any specific odor.

In fact, in addition to detecting seizures, dogs reportedly have been able to identify diabetes and even some cancers, such as ovarian cancer.

Dr. Furton says he’s not aware of any previous use of dogs to screen for infectious disease. That may simply be because nothing recently has struck with the global ferocity of COVID, driving humans to turn to their best friends for help.

Cobra and One Betta got their start learning to identify the presence of laurel wilt, a fungus that attacks avocado trees and kills them, costing Florida growers millions. With that expertise under their collars, the two dogs need only a few weeks to get good at detecting other smells assigned to them.
 

Training the dogs, safely

To train Cobra and One Betta on COVID-19 odors, Dr. Furton’s team first acquired mask samples from people hospitalized with COVID and people who did not have the disease. In battling the viruses, people produce certain chemicals that they exhale every time they breathe. When Dr. Furton and his colleagues compared the exhaled components trapped in the masks, they found differences between masks from people with COVID and those without.

Having confirmed that exhalations can be COVID-specific, the research team trained four dogs – Cobra, One Betta, Hubble, and Max – to detect masks from people with COVID among an assortment of mask choices. Before this step, though, the researchers made sure that any trace of active virus was destroyed by ultraviolet light so that the dogs would not be infected.

Each time the dogs accurately selected a mask from a COVID patient, their reward was access to a favorite toy: A red ball to chew on. Although all four dogs performed very well, yes, they did, Cobra and One Betta showed the most accuracy, outperforming their training colleagues. From their training scores, Cobra ranked first, with 99.45% accuracy. Despite her name, says Dr. Furton, One Betta was “not one better,” coming in second at 98.1%, which is still quite high.

Both dogs are good at their airport screening duties. If one of them sits after sniffing a mask at the checkpoint, the next step is for the mask owner to be tested.

From Aug. 23 to Sept. 8, the two canines screened 1,093 people during 8 working days, alerting on only one case, according to Greg Chin, communications director for the Miami-Dade Aviation Department. That person had tested positive for COVID 2 weeks earlier and was returning to work after quarantine, and their rapid test after the dog alerted was negative.

Dr. Furton says that there are some reports of dogs also alerting before tests can show a positive result, suggesting the dogs’ odor detection can be more precise. They hope to expand their study to see how tight the window of dog-based detection is.

For now, the detector dogs are doing so well that the program has been extended for 30 more days, Mr. Chin says.

As promising as this seems, using dogs for screening carries some logistical and ethical tangles. Training a canine army to deploy for high-volume detection points means that once the work is done, a whole lot of dogs will need a safe place to retire. In addition, the initial training takes several months, says Dr. Furton, whereas if a device were developed for screening, manufacturing could likely be ramped up quickly to meet demand.

The dogs might not need to retire right away, though.

“We envision that they could be redeployed to another type of detection for another infectious disease” if the need arises, Dr. Furton says. But in the end, when working with dogs, he says, there is “a moral connection that you don’t have to deal with using instruments.”

Although the pilot screening at Miami International is the first airport test, the dogs have also done this work in other venues, including at a state emergency operations center in Florida and in some university classrooms, says Dr. Furton.

A version of this article first appeared on WebMD.com.

Cobra the dog has been hard at work at the Miami International Airport, sniffing masks proffered by American Airlines employees making their way through a security checkpoint. If she identifies a specific scent, she’ll let her handler know simply by sitting down. When this good girl sits, that means Cobra has detected an olfactory signal of the coronavirus, the virus that causes COVID-19.

Cobra, a Belgian Malinois, is one of two canines – her partner is One Betta, a Dutch shepherd – working this checkpoint at Miami International. They are part of a pilot program with the Global Forensic and Justice Center at Florida International University, using the detection dogs as a quick screen for people who have COVID-19.

Their detection rate is high, at more than 98%, and the program has been such a success that it’s being extended for another month at the airport.

If these two dogs continue to accurately detect COVID-19, they and other canines with similar training could be deployed to other places with lots of people coming and going at once, including other airports or even schools. In fact, COVID-sniffing dogs are in use in some university classrooms already.

But building up a big brigade of live animals as disease detectors involves some thorny issues, including where the animals retire once their careers are complete.

“When COVID first arose, we said let’s see if we can train these two dogs on either the virus or the odor of COVID-19,” says Kenneth Furton, PhD, a professor of chemistry and biochemistry, provost, and executive vice president at Florida International University.

His team had completed a study with what he calls “medical detector dogs,” animals that might be able to detect the odor of someone having a seizure. That led them to see how well the animals could detect other kinds of disorders.

Training a dog to sniff out specific odors starts with getting them to understand the task in general. Dr. Furton says that the animals first are trained to grasp that their job is to detect one odor among many. Once the dogs grasp that, they can be trained on just about any specific odor.

In fact, in addition to detecting seizures, dogs reportedly have been able to identify diabetes and even some cancers, such as ovarian cancer.

Dr. Furton says he’s not aware of any previous use of dogs to screen for infectious disease. That may simply be because nothing recently has struck with the global ferocity of COVID, driving humans to turn to their best friends for help.

Cobra and One Betta got their start learning to identify the presence of laurel wilt, a fungus that attacks avocado trees and kills them, costing Florida growers millions. With that expertise under their collars, the two dogs need only a few weeks to get good at detecting other smells assigned to them.
 

Training the dogs, safely

To train Cobra and One Betta on COVID-19 odors, Dr. Furton’s team first acquired mask samples from people hospitalized with COVID and people who did not have the disease. In battling the viruses, people produce certain chemicals that they exhale every time they breathe. When Dr. Furton and his colleagues compared the exhaled components trapped in the masks, they found differences between masks from people with COVID and those without.

Having confirmed that exhalations can be COVID-specific, the research team trained four dogs – Cobra, One Betta, Hubble, and Max – to detect masks from people with COVID among an assortment of mask choices. Before this step, though, the researchers made sure that any trace of active virus was destroyed by ultraviolet light so that the dogs would not be infected.

Each time the dogs accurately selected a mask from a COVID patient, their reward was access to a favorite toy: A red ball to chew on. Although all four dogs performed very well, yes, they did, Cobra and One Betta showed the most accuracy, outperforming their training colleagues. From their training scores, Cobra ranked first, with 99.45% accuracy. Despite her name, says Dr. Furton, One Betta was “not one better,” coming in second at 98.1%, which is still quite high.

Both dogs are good at their airport screening duties. If one of them sits after sniffing a mask at the checkpoint, the next step is for the mask owner to be tested.

From Aug. 23 to Sept. 8, the two canines screened 1,093 people during 8 working days, alerting on only one case, according to Greg Chin, communications director for the Miami-Dade Aviation Department. That person had tested positive for COVID 2 weeks earlier and was returning to work after quarantine, and their rapid test after the dog alerted was negative.

Dr. Furton says that there are some reports of dogs also alerting before tests can show a positive result, suggesting the dogs’ odor detection can be more precise. They hope to expand their study to see how tight the window of dog-based detection is.

For now, the detector dogs are doing so well that the program has been extended for 30 more days, Mr. Chin says.

As promising as this seems, using dogs for screening carries some logistical and ethical tangles. Training a canine army to deploy for high-volume detection points means that once the work is done, a whole lot of dogs will need a safe place to retire. In addition, the initial training takes several months, says Dr. Furton, whereas if a device were developed for screening, manufacturing could likely be ramped up quickly to meet demand.

The dogs might not need to retire right away, though.

“We envision that they could be redeployed to another type of detection for another infectious disease” if the need arises, Dr. Furton says. But in the end, when working with dogs, he says, there is “a moral connection that you don’t have to deal with using instruments.”

Although the pilot screening at Miami International is the first airport test, the dogs have also done this work in other venues, including at a state emergency operations center in Florida and in some university classrooms, says Dr. Furton.

A version of this article first appeared on WebMD.com.

On Sept. 5, Rashid Buttar, DO, posted on Twitter that COVID-19 “was a planned operation” and shared an article alleging that most people who got the COVID vaccine would be dead by 2025.

His statement is a recent example in what has been a steady stream of spurious claims surrounding the COVID vaccines and treatments that swirl around the public consciousness. Others include testimony in June by Sherri Jane Tenpenny, DO, before Ohio state legislators that the vaccine could cause people to become magnetized. Clips from the hearing went viral on the Internet. On April 9, 2020, Joseph Mercola, DO, posted a video titled “Could hydrogen peroxide treat coronavirus?” which was shared more than 4,600 times. In the video, Dr. Mercola said inhaling hydrogen peroxide through a nebulizer could prevent or cure COVID.

These physicians are identified as members of the “Disinformation Dozen,” a group of top superspreaders of COVID vaccine misinformation on social media, according to a 2021 report by the nonprofit Center for Countering Digital Hate. The report, based on an analysis of antivaccine content on social media platforms, found that 12 people were responsible for 65% of it. The group is composed of physicians, antivaccine activists, and people known for promoting alternative medicine.

The physician voices are of particular concern because their medical credentials lend credence to their unproven, often dangerous pronouncements. All three continue to hold medical licenses and have not faced consequences for their COVID-related statements.

But leaders of professional medical organizations increasingly are calling for that to change and urging medical oversight boards to take more aggressive action.

In July, the Federation of State Medical Boards, the national umbrella organization for the state-based boards, issued a statement making clear that doctors who generate and spread COVID misinformation could be subject to disciplinary action, including the suspension or revocation of their licenses. The American Board of Family Medicine, American Board of Internal Medicine, and American Board of Pediatrics issued a joint statement Sept. 9 in support of the state boards’ position, warning that “such unethical or unprofessional conduct may prompt their respective board to take action that could put their certification at risk.”

And the superspreaders identified by the center’s report are not alone. KHN identified 20 other doctors who have made false or misleading claims about COVID by combing through published fact checks and other news coverage.

For example, at an Indiana school board meeting in August, Dan Stock, MD, claimed the surge in covid cases this summer was due to “antibody mediated viral enhancement” from people receiving covid vaccines. PolitiFact rated his claim “Pants on Fire” false.

Stella Immanuel, MD, a member of a group America’s Frontline Doctors, which has consistently made false statements about COVID, said in a video that went viral in July 2020 that masks weren’t needed because covid could be cured by hydroxychloroquine. Dr. Immanuel’s website currently promotes a set of vitamins, as well as hydroxychloroquine and ivermectin, as COVID treatments.

Two of the doctors mentioned by name in this article responded to requests for comment. Dr. Mercola offered documents to rebut criticisms of his hydrogen peroxide COVID treatment and took issue with the center’s “Disinformation Dozen” report methodology. Dr. Buttar defended his positions, saying via email that “the science is clear and anyone who contests it, has a suspect agenda at best and/or lacks a moral compass.” He also pointed to data from the Centers for Disease Control and Prevention’s Vaccine Adverse Event Recording System, considered inconclusive by many experts.

Since the onset of the COVID pandemic, misinformation has been widespread on social media platforms. And many experts blame it for undermining efforts to curb the coronavirus’s spread. A recent poll showed that more than 50% of Americans who won’t get vaccinated cited conspiracy theories as their reasons – for example, saying the vaccines cause infertility or alter DNA.

Some physicians have gained notoriety by embracing COVID-related fringe ideas, quack treatments and falsehoods via social media, conservative talk shows, and even in person with patients. Whether promoting the use of ivermectin, an antiparasitic drug for animals, or a mix of vitamins to treat COVID, doctors’ words can be especially powerful. Public opinion polls consistently show that Americans have high trust in doctors.

“There is a sense of credibility that comes with being a doctor,” said Rachel Moran, PhD, a researcher who studies COVID misinformation at the University of Washington. “There is also a sense they have access to insider info that we don’t. This is a very confusing time, and it can seem that if anyone knows what I should be doing in this situation, it’s a doctor.”

While COVID is a novel and complicated infectious disease, physicians spreading misinformation generally have no particular expertise in infectious diseases. Scott Atlas, MD, who endorsed former President Donald Trump’s unproven statements about the course of the pandemic, is a radiation oncologist.

Traditionally, the responsibility of policing physicians has fallen to state medical boards. Beyond overseeing the licensing process, these panels investigate complaints about doctors and discipline those who engage in unethical, unprofessional or, in extreme cases, criminal activity. Any member of the public can submit a complaint about a physician.

“The boards are relatively slow and weak and it’s a long, slow process to pull somebody’s license,” said Arthur Caplan, PhD, founding head of the department of medical ethics at New York University. “In many states, they have their hands full with doctors who have committed felonies, doctors who are molesting their patients. Keeping an eye on misinformation is somewhat down on the priority list.”

To date, only two doctors have reportedly faced such sanctions. In Oregon, Steven LaTulippe, MD, had his license suspended in December 2020 for refusing to wear a face mask at his clinic and telling patients that masks were ineffective in curbing the spread of COVID, and even dangerous. Thomas Cowan, MD, a San Francisco physician who posted a YouTube video that went viral in March 2020 stating that 5G networks cause COVID, voluntarily surrendered his medical license to California’s medical board in February 2021.

Humayun Chaudhry, DO, president of the Federation of State Medical Boards, however, said it’s possible some doctors could already be the subject of inquiries and investigations, since these actions are not made public until sanctions are handed down.

KHN reached out to the medical and osteopathic boards of all 50 states and the District of Columbia to see if they had received COVID misinformation complaints. Of the 43 that responded, only a handful shared specifics.

During a 1-week period in August, Kansas’ medical board received six such complaints. In all, the state has received 35 complaints against 20 licensees about spreading covid misinformation on social media and in person. Indiana has received about 30 in the past year. South Carolina said it had about 10 since January. Rhode Island didn’t share the number of complaints but said it has taken disciplinary action against one doctor for spreading misinformation, though it hasn’t moved to suspend his license. (The disciplinary measures include a fine, a reprimand on the doctor’s record and a mandate to complete an ethics course.) Five states said they had received only a couple, and 11 states reported receiving no complaints regarding COVID misinformation.

Confidentiality laws in 13 states prevented those boards from sharing information about complaints.

Social media companies have also been slow to take action. Some doctors’ accounts – specifically those among the Disinformation Dozen – have been suspended, but others are still active and posting misinformation.

Imran Ahmed, CEO of the Center for Countering Digital Hate, said social media platforms often don’t consistently apply their rules against spreading misinformation.

“Even when it’s the same companies, Facebook will sometimes take posts down, but Instagram will not,” Mr. Ahmed said, referring to Facebook’s ownership of Instagram. “It goes to show their piecemeal, ineffective approach to enforcing their own rules.”

A Facebook spokesperson said the company has removed over 3,000 accounts, pages and groups for repeatedly violating COVID and vaccine misinformation policies since the beginning of the pandemic. Dr. Buttar’s Facebook and Instagram pages and Tenpenny’s Facebook page have been removed, while Dr. Mercola’s Facebook posts have been demoted, which means fewer people will see them. Dr. Tenpenny and Dr. Mercola still have Instagram accounts.

Part of the challenge may be that these doctors sometimes present scientific opinions that aren’t mainstream but are viewed as potentially valid by some of their colleagues.

“It can be difficult to prove that what is being said is outside the range of scientific and medical consensus,” said Dr. Caplan. “The doctors who were advising Trump – like Scott Atlas – recommended herd immunity. That was far from the consensus of epidemiologists, but you couldn’t get a board to take his license away because it was a fringe opinion.”

Even if these physicians don’t face consequences, it is likely, experts said, that the public health will.

“Medical misinformation doesn’t just result in people making bad personal and community health choices, but it also divides communities and families, leaving an emotional toll,” said Dr. Moran. “Misinformation narratives have real sticking power and impact people’s ability to make safe health choices.”

KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

On Sept. 5, Rashid Buttar, DO, posted on Twitter that COVID-19 “was a planned operation” and shared an article alleging that most people who got the COVID vaccine would be dead by 2025.

His statement is a recent example in what has been a steady stream of spurious claims surrounding the COVID vaccines and treatments that swirl around the public consciousness. Others include testimony in June by Sherri Jane Tenpenny, DO, before Ohio state legislators that the vaccine could cause people to become magnetized. Clips from the hearing went viral on the Internet. On April 9, 2020, Joseph Mercola, DO, posted a video titled “Could hydrogen peroxide treat coronavirus?” which was shared more than 4,600 times. In the video, Dr. Mercola said inhaling hydrogen peroxide through a nebulizer could prevent or cure COVID.

These physicians are identified as members of the “Disinformation Dozen,” a group of top superspreaders of COVID vaccine misinformation on social media, according to a 2021 report by the nonprofit Center for Countering Digital Hate. The report, based on an analysis of antivaccine content on social media platforms, found that 12 people were responsible for 65% of it. The group is composed of physicians, antivaccine activists, and people known for promoting alternative medicine.

The physician voices are of particular concern because their medical credentials lend credence to their unproven, often dangerous pronouncements. All three continue to hold medical licenses and have not faced consequences for their COVID-related statements.

But leaders of professional medical organizations increasingly are calling for that to change and urging medical oversight boards to take more aggressive action.

In July, the Federation of State Medical Boards, the national umbrella organization for the state-based boards, issued a statement making clear that doctors who generate and spread COVID misinformation could be subject to disciplinary action, including the suspension or revocation of their licenses. The American Board of Family Medicine, American Board of Internal Medicine, and American Board of Pediatrics issued a joint statement Sept. 9 in support of the state boards’ position, warning that “such unethical or unprofessional conduct may prompt their respective board to take action that could put their certification at risk.”

And the superspreaders identified by the center’s report are not alone. KHN identified 20 other doctors who have made false or misleading claims about COVID by combing through published fact checks and other news coverage.

For example, at an Indiana school board meeting in August, Dan Stock, MD, claimed the surge in covid cases this summer was due to “antibody mediated viral enhancement” from people receiving covid vaccines. PolitiFact rated his claim “Pants on Fire” false.

Stella Immanuel, MD, a member of a group America’s Frontline Doctors, which has consistently made false statements about COVID, said in a video that went viral in July 2020 that masks weren’t needed because covid could be cured by hydroxychloroquine. Dr. Immanuel’s website currently promotes a set of vitamins, as well as hydroxychloroquine and ivermectin, as COVID treatments.

Two of the doctors mentioned by name in this article responded to requests for comment. Dr. Mercola offered documents to rebut criticisms of his hydrogen peroxide COVID treatment and took issue with the center’s “Disinformation Dozen” report methodology. Dr. Buttar defended his positions, saying via email that “the science is clear and anyone who contests it, has a suspect agenda at best and/or lacks a moral compass.” He also pointed to data from the Centers for Disease Control and Prevention’s Vaccine Adverse Event Recording System, considered inconclusive by many experts.

Since the onset of the COVID pandemic, misinformation has been widespread on social media platforms. And many experts blame it for undermining efforts to curb the coronavirus’s spread. A recent poll showed that more than 50% of Americans who won’t get vaccinated cited conspiracy theories as their reasons – for example, saying the vaccines cause infertility or alter DNA.

Some physicians have gained notoriety by embracing COVID-related fringe ideas, quack treatments and falsehoods via social media, conservative talk shows, and even in person with patients. Whether promoting the use of ivermectin, an antiparasitic drug for animals, or a mix of vitamins to treat COVID, doctors’ words can be especially powerful. Public opinion polls consistently show that Americans have high trust in doctors.

“There is a sense of credibility that comes with being a doctor,” said Rachel Moran, PhD, a researcher who studies COVID misinformation at the University of Washington. “There is also a sense they have access to insider info that we don’t. This is a very confusing time, and it can seem that if anyone knows what I should be doing in this situation, it’s a doctor.”

While COVID is a novel and complicated infectious disease, physicians spreading misinformation generally have no particular expertise in infectious diseases. Scott Atlas, MD, who endorsed former President Donald Trump’s unproven statements about the course of the pandemic, is a radiation oncologist.

Traditionally, the responsibility of policing physicians has fallen to state medical boards. Beyond overseeing the licensing process, these panels investigate complaints about doctors and discipline those who engage in unethical, unprofessional or, in extreme cases, criminal activity. Any member of the public can submit a complaint about a physician.

“The boards are relatively slow and weak and it’s a long, slow process to pull somebody’s license,” said Arthur Caplan, PhD, founding head of the department of medical ethics at New York University. “In many states, they have their hands full with doctors who have committed felonies, doctors who are molesting their patients. Keeping an eye on misinformation is somewhat down on the priority list.”

To date, only two doctors have reportedly faced such sanctions. In Oregon, Steven LaTulippe, MD, had his license suspended in December 2020 for refusing to wear a face mask at his clinic and telling patients that masks were ineffective in curbing the spread of COVID, and even dangerous. Thomas Cowan, MD, a San Francisco physician who posted a YouTube video that went viral in March 2020 stating that 5G networks cause COVID, voluntarily surrendered his medical license to California’s medical board in February 2021.

Humayun Chaudhry, DO, president of the Federation of State Medical Boards, however, said it’s possible some doctors could already be the subject of inquiries and investigations, since these actions are not made public until sanctions are handed down.

KHN reached out to the medical and osteopathic boards of all 50 states and the District of Columbia to see if they had received COVID misinformation complaints. Of the 43 that responded, only a handful shared specifics.

During a 1-week period in August, Kansas’ medical board received six such complaints. In all, the state has received 35 complaints against 20 licensees about spreading covid misinformation on social media and in person. Indiana has received about 30 in the past year. South Carolina said it had about 10 since January. Rhode Island didn’t share the number of complaints but said it has taken disciplinary action against one doctor for spreading misinformation, though it hasn’t moved to suspend his license. (The disciplinary measures include a fine, a reprimand on the doctor’s record and a mandate to complete an ethics course.) Five states said they had received only a couple, and 11 states reported receiving no complaints regarding COVID misinformation.

Confidentiality laws in 13 states prevented those boards from sharing information about complaints.

Social media companies have also been slow to take action. Some doctors’ accounts – specifically those among the Disinformation Dozen – have been suspended, but others are still active and posting misinformation.

Imran Ahmed, CEO of the Center for Countering Digital Hate, said social media platforms often don’t consistently apply their rules against spreading misinformation.

“Even when it’s the same companies, Facebook will sometimes take posts down, but Instagram will not,” Mr. Ahmed said, referring to Facebook’s ownership of Instagram. “It goes to show their piecemeal, ineffective approach to enforcing their own rules.”

A Facebook spokesperson said the company has removed over 3,000 accounts, pages and groups for repeatedly violating COVID and vaccine misinformation policies since the beginning of the pandemic. Dr. Buttar’s Facebook and Instagram pages and Tenpenny’s Facebook page have been removed, while Dr. Mercola’s Facebook posts have been demoted, which means fewer people will see them. Dr. Tenpenny and Dr. Mercola still have Instagram accounts.

Part of the challenge may be that these doctors sometimes present scientific opinions that aren’t mainstream but are viewed as potentially valid by some of their colleagues.

“It can be difficult to prove that what is being said is outside the range of scientific and medical consensus,” said Dr. Caplan. “The doctors who were advising Trump – like Scott Atlas – recommended herd immunity. That was far from the consensus of epidemiologists, but you couldn’t get a board to take his license away because it was a fringe opinion.”

Even if these physicians don’t face consequences, it is likely, experts said, that the public health will.

“Medical misinformation doesn’t just result in people making bad personal and community health choices, but it also divides communities and families, leaving an emotional toll,” said Dr. Moran. “Misinformation narratives have real sticking power and impact people’s ability to make safe health choices.”

KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

On Sept. 5, Rashid Buttar, DO, posted on Twitter that COVID-19 “was a planned operation” and shared an article alleging that most people who got the COVID vaccine would be dead by 2025.

His statement is a recent example in what has been a steady stream of spurious claims surrounding the COVID vaccines and treatments that swirl around the public consciousness. Others include testimony in June by Sherri Jane Tenpenny, DO, before Ohio state legislators that the vaccine could cause people to become magnetized. Clips from the hearing went viral on the Internet. On April 9, 2020, Joseph Mercola, DO, posted a video titled “Could hydrogen peroxide treat coronavirus?” which was shared more than 4,600 times. In the video, Dr. Mercola said inhaling hydrogen peroxide through a nebulizer could prevent or cure COVID.

These physicians are identified as members of the “Disinformation Dozen,” a group of top superspreaders of COVID vaccine misinformation on social media, according to a 2021 report by the nonprofit Center for Countering Digital Hate. The report, based on an analysis of antivaccine content on social media platforms, found that 12 people were responsible for 65% of it. The group is composed of physicians, antivaccine activists, and people known for promoting alternative medicine.

The physician voices are of particular concern because their medical credentials lend credence to their unproven, often dangerous pronouncements. All three continue to hold medical licenses and have not faced consequences for their COVID-related statements.

But leaders of professional medical organizations increasingly are calling for that to change and urging medical oversight boards to take more aggressive action.

In July, the Federation of State Medical Boards, the national umbrella organization for the state-based boards, issued a statement making clear that doctors who generate and spread COVID misinformation could be subject to disciplinary action, including the suspension or revocation of their licenses. The American Board of Family Medicine, American Board of Internal Medicine, and American Board of Pediatrics issued a joint statement Sept. 9 in support of the state boards’ position, warning that “such unethical or unprofessional conduct may prompt their respective board to take action that could put their certification at risk.”

And the superspreaders identified by the center’s report are not alone. KHN identified 20 other doctors who have made false or misleading claims about COVID by combing through published fact checks and other news coverage.

For example, at an Indiana school board meeting in August, Dan Stock, MD, claimed the surge in covid cases this summer was due to “antibody mediated viral enhancement” from people receiving covid vaccines. PolitiFact rated his claim “Pants on Fire” false.

Stella Immanuel, MD, a member of a group America’s Frontline Doctors, which has consistently made false statements about COVID, said in a video that went viral in July 2020 that masks weren’t needed because covid could be cured by hydroxychloroquine. Dr. Immanuel’s website currently promotes a set of vitamins, as well as hydroxychloroquine and ivermectin, as COVID treatments.

Two of the doctors mentioned by name in this article responded to requests for comment. Dr. Mercola offered documents to rebut criticisms of his hydrogen peroxide COVID treatment and took issue with the center’s “Disinformation Dozen” report methodology. Dr. Buttar defended his positions, saying via email that “the science is clear and anyone who contests it, has a suspect agenda at best and/or lacks a moral compass.” He also pointed to data from the Centers for Disease Control and Prevention’s Vaccine Adverse Event Recording System, considered inconclusive by many experts.

Since the onset of the COVID pandemic, misinformation has been widespread on social media platforms. And many experts blame it for undermining efforts to curb the coronavirus’s spread. A recent poll showed that more than 50% of Americans who won’t get vaccinated cited conspiracy theories as their reasons – for example, saying the vaccines cause infertility or alter DNA.

Some physicians have gained notoriety by embracing COVID-related fringe ideas, quack treatments and falsehoods via social media, conservative talk shows, and even in person with patients. Whether promoting the use of ivermectin, an antiparasitic drug for animals, or a mix of vitamins to treat COVID, doctors’ words can be especially powerful. Public opinion polls consistently show that Americans have high trust in doctors.

“There is a sense of credibility that comes with being a doctor,” said Rachel Moran, PhD, a researcher who studies COVID misinformation at the University of Washington. “There is also a sense they have access to insider info that we don’t. This is a very confusing time, and it can seem that if anyone knows what I should be doing in this situation, it’s a doctor.”

While COVID is a novel and complicated infectious disease, physicians spreading misinformation generally have no particular expertise in infectious diseases. Scott Atlas, MD, who endorsed former President Donald Trump’s unproven statements about the course of the pandemic, is a radiation oncologist.

Traditionally, the responsibility of policing physicians has fallen to state medical boards. Beyond overseeing the licensing process, these panels investigate complaints about doctors and discipline those who engage in unethical, unprofessional or, in extreme cases, criminal activity. Any member of the public can submit a complaint about a physician.

“The boards are relatively slow and weak and it’s a long, slow process to pull somebody’s license,” said Arthur Caplan, PhD, founding head of the department of medical ethics at New York University. “In many states, they have their hands full with doctors who have committed felonies, doctors who are molesting their patients. Keeping an eye on misinformation is somewhat down on the priority list.”

To date, only two doctors have reportedly faced such sanctions. In Oregon, Steven LaTulippe, MD, had his license suspended in December 2020 for refusing to wear a face mask at his clinic and telling patients that masks were ineffective in curbing the spread of COVID, and even dangerous. Thomas Cowan, MD, a San Francisco physician who posted a YouTube video that went viral in March 2020 stating that 5G networks cause COVID, voluntarily surrendered his medical license to California’s medical board in February 2021.

Humayun Chaudhry, DO, president of the Federation of State Medical Boards, however, said it’s possible some doctors could already be the subject of inquiries and investigations, since these actions are not made public until sanctions are handed down.

KHN reached out to the medical and osteopathic boards of all 50 states and the District of Columbia to see if they had received COVID misinformation complaints. Of the 43 that responded, only a handful shared specifics.

During a 1-week period in August, Kansas’ medical board received six such complaints. In all, the state has received 35 complaints against 20 licensees about spreading covid misinformation on social media and in person. Indiana has received about 30 in the past year. South Carolina said it had about 10 since January. Rhode Island didn’t share the number of complaints but said it has taken disciplinary action against one doctor for spreading misinformation, though it hasn’t moved to suspend his license. (The disciplinary measures include a fine, a reprimand on the doctor’s record and a mandate to complete an ethics course.) Five states said they had received only a couple, and 11 states reported receiving no complaints regarding COVID misinformation.

Confidentiality laws in 13 states prevented those boards from sharing information about complaints.

Social media companies have also been slow to take action. Some doctors’ accounts – specifically those among the Disinformation Dozen – have been suspended, but others are still active and posting misinformation.

Imran Ahmed, CEO of the Center for Countering Digital Hate, said social media platforms often don’t consistently apply their rules against spreading misinformation.

“Even when it’s the same companies, Facebook will sometimes take posts down, but Instagram will not,” Mr. Ahmed said, referring to Facebook’s ownership of Instagram. “It goes to show their piecemeal, ineffective approach to enforcing their own rules.”

A Facebook spokesperson said the company has removed over 3,000 accounts, pages and groups for repeatedly violating COVID and vaccine misinformation policies since the beginning of the pandemic. Dr. Buttar’s Facebook and Instagram pages and Tenpenny’s Facebook page have been removed, while Dr. Mercola’s Facebook posts have been demoted, which means fewer people will see them. Dr. Tenpenny and Dr. Mercola still have Instagram accounts.

Part of the challenge may be that these doctors sometimes present scientific opinions that aren’t mainstream but are viewed as potentially valid by some of their colleagues.

“It can be difficult to prove that what is being said is outside the range of scientific and medical consensus,” said Dr. Caplan. “The doctors who were advising Trump – like Scott Atlas – recommended herd immunity. That was far from the consensus of epidemiologists, but you couldn’t get a board to take his license away because it was a fringe opinion.”

Even if these physicians don’t face consequences, it is likely, experts said, that the public health will.

“Medical misinformation doesn’t just result in people making bad personal and community health choices, but it also divides communities and families, leaving an emotional toll,” said Dr. Moran. “Misinformation narratives have real sticking power and impact people’s ability to make safe health choices.”

KHN (Kaiser Health News) is a national newsroom that produces in-depth journalism about health issues. Together with Policy Analysis and Polling, KHN is one of the three major operating programs at KFF (Kaiser Family Foundation). KFF is an endowed nonprofit organization providing information on health issues to the nation.

The Oregon Medical Board has revoked the license of a doctor who didn’t follow COVID-19 guidelines in his office and even told some patients that wearing face masks could lead to carbon-dioxide poisoning.

Steven Arthur LaTulippe’s advice to patients about face masking amounted to “gross negligence” in the practice of medicine and was grounds for discipline, the medical board said in a report.

Mr. LaTulippe, who had a family practice in Dallas, was fined $10,000, Insider reported. The board also said he’d overprescribed opioids for some patients.

The medical board report said Mr. LaTulippe and his wife, who ran the clinic with him, didn’t wear face masks while treating patients from March to December 2020.

Mr. LaTulippe told elderly and pediatric patients that mask wearing could hurt their health by exacerbating COPD and asthma and could contribute to heart attacks and other medical problems, the report said.

“Licensee asserts masks are likely to harm patients by increasing the body’s carbon dioxide content through rebreathing of gas trapped behind a mask,” the report said.

The report noted that “the amount of carbon dioxide rebreathed within a mask is trivial and would easily be expelled by an increase in minute ventilation so small it would not be noticed.”

The report said Mr. LaTulippe told patients they didn’t have to wear a mask in the clinic unless they were “acutely ill,” “coughing,” or “congested,” even though the Centers for Disease Control and Prevention and the Oregon governor had recommended masks be worn to prevent the spread of the virus.

Before coming into the office, patients weren’t asked if they’d had recent contact with anybody who was infected or showed COVID symptoms, the report said.

The medical board first suspended his license in September. He said he would not change his conduct concerning face masks.

“Licensee has confirmed that he will refuse to abide by the state’s COVID-19 protocols in the future as well, affirming that in a choice between losing his medical license versus wearing a mask in his clinic and requiring his patients and staff to wear a mask in his clinic, he will, ‘choose to sacrifice my medical license with no hesitation’ ” the medical board’s report said.

Mr. LaTulippe told the medical board that he was “a strong asset to the public in educating them on the real facts about this pandemic” and that “at least 98% of my patients were so extremely thankful that I did not wear a mask or demand wearing a mask in my clinic.”

The medical board found Mr. LaTulippe engaged in 8 instances of unprofessional or dishonorable conduct, 22 instances of negligence in the practice of medicine, and 5 instances of gross negligence in the practice of medicine.

A version of this article first appeared on WebMD.com.

The Oregon Medical Board has revoked the license of a doctor who didn’t follow COVID-19 guidelines in his office and even told some patients that wearing face masks could lead to carbon-dioxide poisoning.

Steven Arthur LaTulippe’s advice to patients about face masking amounted to “gross negligence” in the practice of medicine and was grounds for discipline, the medical board said in a report.

Mr. LaTulippe, who had a family practice in Dallas, was fined $10,000, Insider reported. The board also said he’d overprescribed opioids for some patients.

The medical board report said Mr. LaTulippe and his wife, who ran the clinic with him, didn’t wear face masks while treating patients from March to December 2020.

Mr. LaTulippe told elderly and pediatric patients that mask wearing could hurt their health by exacerbating COPD and asthma and could contribute to heart attacks and other medical problems, the report said.

“Licensee asserts masks are likely to harm patients by increasing the body’s carbon dioxide content through rebreathing of gas trapped behind a mask,” the report said.

The report noted that “the amount of carbon dioxide rebreathed within a mask is trivial and would easily be expelled by an increase in minute ventilation so small it would not be noticed.”

The report said Mr. LaTulippe told patients they didn’t have to wear a mask in the clinic unless they were “acutely ill,” “coughing,” or “congested,” even though the Centers for Disease Control and Prevention and the Oregon governor had recommended masks be worn to prevent the spread of the virus.

Before coming into the office, patients weren’t asked if they’d had recent contact with anybody who was infected or showed COVID symptoms, the report said.

The medical board first suspended his license in September. He said he would not change his conduct concerning face masks.

“Licensee has confirmed that he will refuse to abide by the state’s COVID-19 protocols in the future as well, affirming that in a choice between losing his medical license versus wearing a mask in his clinic and requiring his patients and staff to wear a mask in his clinic, he will, ‘choose to sacrifice my medical license with no hesitation’ ” the medical board’s report said.

Mr. LaTulippe told the medical board that he was “a strong asset to the public in educating them on the real facts about this pandemic” and that “at least 98% of my patients were so extremely thankful that I did not wear a mask or demand wearing a mask in my clinic.”

The medical board found Mr. LaTulippe engaged in 8 instances of unprofessional or dishonorable conduct, 22 instances of negligence in the practice of medicine, and 5 instances of gross negligence in the practice of medicine.

A version of this article first appeared on WebMD.com.

The Oregon Medical Board has revoked the license of a doctor who didn’t follow COVID-19 guidelines in his office and even told some patients that wearing face masks could lead to carbon-dioxide poisoning.

Steven Arthur LaTulippe’s advice to patients about face masking amounted to “gross negligence” in the practice of medicine and was grounds for discipline, the medical board said in a report.

Mr. LaTulippe, who had a family practice in Dallas, was fined $10,000, Insider reported. The board also said he’d overprescribed opioids for some patients.

The medical board report said Mr. LaTulippe and his wife, who ran the clinic with him, didn’t wear face masks while treating patients from March to December 2020.

Mr. LaTulippe told elderly and pediatric patients that mask wearing could hurt their health by exacerbating COPD and asthma and could contribute to heart attacks and other medical problems, the report said.

“Licensee asserts masks are likely to harm patients by increasing the body’s carbon dioxide content through rebreathing of gas trapped behind a mask,” the report said.

The report noted that “the amount of carbon dioxide rebreathed within a mask is trivial and would easily be expelled by an increase in minute ventilation so small it would not be noticed.”

The report said Mr. LaTulippe told patients they didn’t have to wear a mask in the clinic unless they were “acutely ill,” “coughing,” or “congested,” even though the Centers for Disease Control and Prevention and the Oregon governor had recommended masks be worn to prevent the spread of the virus.

Before coming into the office, patients weren’t asked if they’d had recent contact with anybody who was infected or showed COVID symptoms, the report said.

The medical board first suspended his license in September. He said he would not change his conduct concerning face masks.

“Licensee has confirmed that he will refuse to abide by the state’s COVID-19 protocols in the future as well, affirming that in a choice between losing his medical license versus wearing a mask in his clinic and requiring his patients and staff to wear a mask in his clinic, he will, ‘choose to sacrifice my medical license with no hesitation’ ” the medical board’s report said.

Mr. LaTulippe told the medical board that he was “a strong asset to the public in educating them on the real facts about this pandemic” and that “at least 98% of my patients were so extremely thankful that I did not wear a mask or demand wearing a mask in my clinic.”

The medical board found Mr. LaTulippe engaged in 8 instances of unprofessional or dishonorable conduct, 22 instances of negligence in the practice of medicine, and 5 instances of gross negligence in the practice of medicine.

A version of this article first appeared on WebMD.com.

Although most children and adolescents with cancer have mild illness from COVID-19 infection, some do experience severe disease and a small percentage even die, according to a recent analysis.

The findings, published online in Lancet Oncology, represent the first global registry data spanning different income groups to report COVID-19 outcomes in pediatric oncology patients.

“We wanted to create a global pool of evidence to answer the question: Do we see severe [COVID-19] infection [in children with cancer]?” corresponding author Sheena Mukkada, MD, St. Jude Children’s Research Hospital, Memphis, said in an interview.

In a cohort of 1,319 pediatric patients followed for 30 days, Dr. Mukkada and colleagues reported that 80% of these patients had asymptomatic to moderate disease from COVID-19, while 1 in 5 experienced severe or critical illness and almost 4% died – four times the mortality rate observed in published cohorts of general pediatric patients.

The results highlight that “children and adolescents with cancer generally recover without incident from COVID-19, but can have a severe course of infection,” the authors concluded.

And knowing that some children can get very sick, investigators wanted “to identify who these patients are so that we can prioritize and protect that group,” she added.

Echoing that sentiment, Kathy Pritchard-Jones, MD, president of the International Society of Paediatric Oncology and coauthor on the study, noted in a press release that, “by working together to create this global registry, we have enabled hospitals around the world to rapidly share and learn how COVID-19 is affecting children with cancer.”

Dr. Pritchard-Jones commented that overall these results provide reassurance that “many children can continue their cancer treatment safely, but they also highlight important clinical features that may predict a more severe clinical course and the need for greater vigilance for some patients.”
 

Inside the Global Registry data

The Global Registry of COVID-19 in Childhood Cancer, created jointly by St. Jude Children’s Research Hospital and SIOP, included data from 131 institutions in 45 countries. Children recruited into the registry between April 2020 and February 2021 ranged in age from infancy to 18 years old.  

Most patients remained asymptomatic (35%) or experienced mild to moderate illness (45%), though 20% did develop severe or critical illness.

The investigators highlighted several factors associated with a greater risk of developing more severe illness from COVID-19, which included cancer type, intensity of therapy, age, absolute lymphocyte count, and presence of comorbidities or COVID-19 symptoms.

Notably, more than 80% of either severe or critical infections occurred in patients with hematologic malignancies – with 56% of cases in patients with acute lymphoblastic lymphoma or acute lymphoblastic leukemia – followed by extracranial solid tumors (15.8%), and central nervous system tumors (2.7%).

In patients with acute lymphoblastic leukemia or acute lymphoblastic lymphoma, severe or critical disease was most common in those receiving induction therapy (30%), relapse or refractory therapy (30%), and those in the maintenance or continuation phase of therapy (19%).

Older age was associated with a higher likelihood of having severe disease – with the lowest risk in infants (9.7%) and the highest in the 15- to 18-year-old cohort (27.3%).

Patients with lymphopenia who had an absolute lymphocyte count of 300 cells per mm³ or less and an absolute neutrophil count of 500 cells per mm³ or more also had an elevated risk of severe illness from COVID-19.

Regarding whether the presence of lymphopenia or neutropenia should change the treatment approach, Dr. Mukkada noted that, when possible, these patients should receive antiviral treatment, such as remdesivir, if the center has antivirals, or be prioritized for hospital admission.

Modifying cancer treatment might be recommended if patients are highly lymphopenic or have very low neutrophil counts, but a more effective strategy is simply to ensure that age-eligible children and adolescents with cancer or who have had a hematopoietic stem-cell transplantation have been fully vaccinated against COVID-19. For children who are not yet age-eligible, everyone around them should be vaccinated.

Pediatric patients in low- and middle-income countries were also more likely to have severe or critical outcomes from COVID-19 (41.7%), compared with patients in other income groups (23.9%).

The impact of COVID-19 “has been felt in every corner of the world, but particularly in low- and middle-income countries, compared to high-income countries,” senior author Carlos Rodriguez-Galindo, MD, global director at St. Jude, said in a statement.

In terms of the intersection of cancer treatment and COVID diagnosis, almost 83% of pediatric patients were receiving treatment for their cancer. Chemotherapy was withheld in about 45% of these patients and some modification to the treatment regimen occurred in almost 56% of participants on active therapy.

“Treatment modifications were least common in patients from upper-middle–income countries, compared with other income groups,” the authors wrote.

Although an interesting observation, Dr. Mukkada noted that the registry data could not explain why treatment modifications occurred less frequently in upper-middle income countries as opposed to high-income and lower-income countries.
 

U.K. Monitoring Project

Not all studies, however, have found that COVID-19 infection is significantly more severe in children with cancer. In a 2020 report from the U.K. Paediatric Coronavirus Cancer Monitoring Project, researchers evaluated all children in the United Kingdom under the age of 16 diagnosed with COVID and cancer.

“[Given that] we had complete coverage of every center in the U.K. that cares for children with cancer, we are confident that we picked up at least all the severe or critical cases,” lead author Gerard Millen, MD, honorary clinical research fellow, University of Birmingham (England), said in an interview.

Between March 2020 and July 2020, Dr. Millen and colleagues identified 54 positive cases of COVID-19, 15 (28%) of which were asymptomatic, 34 (63%) mild, and 4 (7.4%) severe or critical – more in line with the incidence of severe illness reported in the general pediatric population.

“Thankfully, we had no children with cancer in the U.K. who died from COVID-19,” Dr. Millen noted. “Overall, in the U.K., we have taken the approach that the majority of children with cancer in this country are at very low risk from COVID-19 and that we do not have good evidence to modify their treatment.”

Dr. Millen pointed out that the data in the U.K. study were “remarkably similar” to those from the high-income countries in the global St. Jude/SIOP cohort, where 7.4% of patients in that cohort had severe or critical disease, compared with 7.4% of patients from their own U.K. cohort.

“I think many of the key differences between the two cohorts reflect the fact that access to treatment in many low- to middle-income countries is more challenging with many factors contributing to overall poorer outcomes for both cancer and noncancer metrics,” Dr. Millen said.

Both the U.K. and registry studies were performed prior to vaccinations becoming available to older children, and before the emergence of certain variants, including the Delta variant, which is responsible for the most recent surge of COVID-19 infections around the world.

Data on COVID-19 vaccination in children with cancer are limited but promising so far.

As for whether the Delta variant might affect outcomes for children with cancer and COVID-19, Dr. Mukkada could only speculate, but she noted that “what we are hearing anecdotally about the [Delta] disease being more severe, even in patients who don’t have cancer, is leading us to say that we can’t close the registry yet. We are still actively enrolling children.”

The study was funded by the American Lebanese Syrian Associated Charities and the National Cancer Institute. The study authors and Dr. Millen disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Although most children and adolescents with cancer have mild illness from COVID-19 infection, some do experience severe disease and a small percentage even die, according to a recent analysis.

The findings, published online in Lancet Oncology, represent the first global registry data spanning different income groups to report COVID-19 outcomes in pediatric oncology patients.

“We wanted to create a global pool of evidence to answer the question: Do we see severe [COVID-19] infection [in children with cancer]?” corresponding author Sheena Mukkada, MD, St. Jude Children’s Research Hospital, Memphis, said in an interview.

In a cohort of 1,319 pediatric patients followed for 30 days, Dr. Mukkada and colleagues reported that 80% of these patients had asymptomatic to moderate disease from COVID-19, while 1 in 5 experienced severe or critical illness and almost 4% died – four times the mortality rate observed in published cohorts of general pediatric patients.

The results highlight that “children and adolescents with cancer generally recover without incident from COVID-19, but can have a severe course of infection,” the authors concluded.

And knowing that some children can get very sick, investigators wanted “to identify who these patients are so that we can prioritize and protect that group,” she added.

Echoing that sentiment, Kathy Pritchard-Jones, MD, president of the International Society of Paediatric Oncology and coauthor on the study, noted in a press release that, “by working together to create this global registry, we have enabled hospitals around the world to rapidly share and learn how COVID-19 is affecting children with cancer.”

Dr. Pritchard-Jones commented that overall these results provide reassurance that “many children can continue their cancer treatment safely, but they also highlight important clinical features that may predict a more severe clinical course and the need for greater vigilance for some patients.”
 

Inside the Global Registry data

The Global Registry of COVID-19 in Childhood Cancer, created jointly by St. Jude Children’s Research Hospital and SIOP, included data from 131 institutions in 45 countries. Children recruited into the registry between April 2020 and February 2021 ranged in age from infancy to 18 years old.  

Most patients remained asymptomatic (35%) or experienced mild to moderate illness (45%), though 20% did develop severe or critical illness.

The investigators highlighted several factors associated with a greater risk of developing more severe illness from COVID-19, which included cancer type, intensity of therapy, age, absolute lymphocyte count, and presence of comorbidities or COVID-19 symptoms.

Notably, more than 80% of either severe or critical infections occurred in patients with hematologic malignancies – with 56% of cases in patients with acute lymphoblastic lymphoma or acute lymphoblastic leukemia – followed by extracranial solid tumors (15.8%), and central nervous system tumors (2.7%).

In patients with acute lymphoblastic leukemia or acute lymphoblastic lymphoma, severe or critical disease was most common in those receiving induction therapy (30%), relapse or refractory therapy (30%), and those in the maintenance or continuation phase of therapy (19%).

Older age was associated with a higher likelihood of having severe disease – with the lowest risk in infants (9.7%) and the highest in the 15- to 18-year-old cohort (27.3%).

Patients with lymphopenia who had an absolute lymphocyte count of 300 cells per mm³ or less and an absolute neutrophil count of 500 cells per mm³ or more also had an elevated risk of severe illness from COVID-19.

Regarding whether the presence of lymphopenia or neutropenia should change the treatment approach, Dr. Mukkada noted that, when possible, these patients should receive antiviral treatment, such as remdesivir, if the center has antivirals, or be prioritized for hospital admission.

Modifying cancer treatment might be recommended if patients are highly lymphopenic or have very low neutrophil counts, but a more effective strategy is simply to ensure that age-eligible children and adolescents with cancer or who have had a hematopoietic stem-cell transplantation have been fully vaccinated against COVID-19. For children who are not yet age-eligible, everyone around them should be vaccinated.

Pediatric patients in low- and middle-income countries were also more likely to have severe or critical outcomes from COVID-19 (41.7%), compared with patients in other income groups (23.9%).

The impact of COVID-19 “has been felt in every corner of the world, but particularly in low- and middle-income countries, compared to high-income countries,” senior author Carlos Rodriguez-Galindo, MD, global director at St. Jude, said in a statement.

In terms of the intersection of cancer treatment and COVID diagnosis, almost 83% of pediatric patients were receiving treatment for their cancer. Chemotherapy was withheld in about 45% of these patients and some modification to the treatment regimen occurred in almost 56% of participants on active therapy.

“Treatment modifications were least common in patients from upper-middle–income countries, compared with other income groups,” the authors wrote.

Although an interesting observation, Dr. Mukkada noted that the registry data could not explain why treatment modifications occurred less frequently in upper-middle income countries as opposed to high-income and lower-income countries.
 

U.K. Monitoring Project

Not all studies, however, have found that COVID-19 infection is significantly more severe in children with cancer. In a 2020 report from the U.K. Paediatric Coronavirus Cancer Monitoring Project, researchers evaluated all children in the United Kingdom under the age of 16 diagnosed with COVID and cancer.

“[Given that] we had complete coverage of every center in the U.K. that cares for children with cancer, we are confident that we picked up at least all the severe or critical cases,” lead author Gerard Millen, MD, honorary clinical research fellow, University of Birmingham (England), said in an interview.

Between March 2020 and July 2020, Dr. Millen and colleagues identified 54 positive cases of COVID-19, 15 (28%) of which were asymptomatic, 34 (63%) mild, and 4 (7.4%) severe or critical – more in line with the incidence of severe illness reported in the general pediatric population.

“Thankfully, we had no children with cancer in the U.K. who died from COVID-19,” Dr. Millen noted. “Overall, in the U.K., we have taken the approach that the majority of children with cancer in this country are at very low risk from COVID-19 and that we do not have good evidence to modify their treatment.”

Dr. Millen pointed out that the data in the U.K. study were “remarkably similar” to those from the high-income countries in the global St. Jude/SIOP cohort, where 7.4% of patients in that cohort had severe or critical disease, compared with 7.4% of patients from their own U.K. cohort.

“I think many of the key differences between the two cohorts reflect the fact that access to treatment in many low- to middle-income countries is more challenging with many factors contributing to overall poorer outcomes for both cancer and noncancer metrics,” Dr. Millen said.

Both the U.K. and registry studies were performed prior to vaccinations becoming available to older children, and before the emergence of certain variants, including the Delta variant, which is responsible for the most recent surge of COVID-19 infections around the world.

Data on COVID-19 vaccination in children with cancer are limited but promising so far.

As for whether the Delta variant might affect outcomes for children with cancer and COVID-19, Dr. Mukkada could only speculate, but she noted that “what we are hearing anecdotally about the [Delta] disease being more severe, even in patients who don’t have cancer, is leading us to say that we can’t close the registry yet. We are still actively enrolling children.”

The study was funded by the American Lebanese Syrian Associated Charities and the National Cancer Institute. The study authors and Dr. Millen disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Although most children and adolescents with cancer have mild illness from COVID-19 infection, some do experience severe disease and a small percentage even die, according to a recent analysis.

The findings, published online in Lancet Oncology, represent the first global registry data spanning different income groups to report COVID-19 outcomes in pediatric oncology patients.

“We wanted to create a global pool of evidence to answer the question: Do we see severe [COVID-19] infection [in children with cancer]?” corresponding author Sheena Mukkada, MD, St. Jude Children’s Research Hospital, Memphis, said in an interview.

In a cohort of 1,319 pediatric patients followed for 30 days, Dr. Mukkada and colleagues reported that 80% of these patients had asymptomatic to moderate disease from COVID-19, while 1 in 5 experienced severe or critical illness and almost 4% died – four times the mortality rate observed in published cohorts of general pediatric patients.

The results highlight that “children and adolescents with cancer generally recover without incident from COVID-19, but can have a severe course of infection,” the authors concluded.

And knowing that some children can get very sick, investigators wanted “to identify who these patients are so that we can prioritize and protect that group,” she added.

Echoing that sentiment, Kathy Pritchard-Jones, MD, president of the International Society of Paediatric Oncology and coauthor on the study, noted in a press release that, “by working together to create this global registry, we have enabled hospitals around the world to rapidly share and learn how COVID-19 is affecting children with cancer.”

Dr. Pritchard-Jones commented that overall these results provide reassurance that “many children can continue their cancer treatment safely, but they also highlight important clinical features that may predict a more severe clinical course and the need for greater vigilance for some patients.”
 

Inside the Global Registry data

The Global Registry of COVID-19 in Childhood Cancer, created jointly by St. Jude Children’s Research Hospital and SIOP, included data from 131 institutions in 45 countries. Children recruited into the registry between April 2020 and February 2021 ranged in age from infancy to 18 years old.  

Most patients remained asymptomatic (35%) or experienced mild to moderate illness (45%), though 20% did develop severe or critical illness.

The investigators highlighted several factors associated with a greater risk of developing more severe illness from COVID-19, which included cancer type, intensity of therapy, age, absolute lymphocyte count, and presence of comorbidities or COVID-19 symptoms.

Notably, more than 80% of either severe or critical infections occurred in patients with hematologic malignancies – with 56% of cases in patients with acute lymphoblastic lymphoma or acute lymphoblastic leukemia – followed by extracranial solid tumors (15.8%), and central nervous system tumors (2.7%).

In patients with acute lymphoblastic leukemia or acute lymphoblastic lymphoma, severe or critical disease was most common in those receiving induction therapy (30%), relapse or refractory therapy (30%), and those in the maintenance or continuation phase of therapy (19%).

Older age was associated with a higher likelihood of having severe disease – with the lowest risk in infants (9.7%) and the highest in the 15- to 18-year-old cohort (27.3%).

Patients with lymphopenia who had an absolute lymphocyte count of 300 cells per mm³ or less and an absolute neutrophil count of 500 cells per mm³ or more also had an elevated risk of severe illness from COVID-19.

Regarding whether the presence of lymphopenia or neutropenia should change the treatment approach, Dr. Mukkada noted that, when possible, these patients should receive antiviral treatment, such as remdesivir, if the center has antivirals, or be prioritized for hospital admission.

Modifying cancer treatment might be recommended if patients are highly lymphopenic or have very low neutrophil counts, but a more effective strategy is simply to ensure that age-eligible children and adolescents with cancer or who have had a hematopoietic stem-cell transplantation have been fully vaccinated against COVID-19. For children who are not yet age-eligible, everyone around them should be vaccinated.

Pediatric patients in low- and middle-income countries were also more likely to have severe or critical outcomes from COVID-19 (41.7%), compared with patients in other income groups (23.9%).

The impact of COVID-19 “has been felt in every corner of the world, but particularly in low- and middle-income countries, compared to high-income countries,” senior author Carlos Rodriguez-Galindo, MD, global director at St. Jude, said in a statement.

In terms of the intersection of cancer treatment and COVID diagnosis, almost 83% of pediatric patients were receiving treatment for their cancer. Chemotherapy was withheld in about 45% of these patients and some modification to the treatment regimen occurred in almost 56% of participants on active therapy.

“Treatment modifications were least common in patients from upper-middle–income countries, compared with other income groups,” the authors wrote.

Although an interesting observation, Dr. Mukkada noted that the registry data could not explain why treatment modifications occurred less frequently in upper-middle income countries as opposed to high-income and lower-income countries.
 

U.K. Monitoring Project

Not all studies, however, have found that COVID-19 infection is significantly more severe in children with cancer. In a 2020 report from the U.K. Paediatric Coronavirus Cancer Monitoring Project, researchers evaluated all children in the United Kingdom under the age of 16 diagnosed with COVID and cancer.

“[Given that] we had complete coverage of every center in the U.K. that cares for children with cancer, we are confident that we picked up at least all the severe or critical cases,” lead author Gerard Millen, MD, honorary clinical research fellow, University of Birmingham (England), said in an interview.

Between March 2020 and July 2020, Dr. Millen and colleagues identified 54 positive cases of COVID-19, 15 (28%) of which were asymptomatic, 34 (63%) mild, and 4 (7.4%) severe or critical – more in line with the incidence of severe illness reported in the general pediatric population.

“Thankfully, we had no children with cancer in the U.K. who died from COVID-19,” Dr. Millen noted. “Overall, in the U.K., we have taken the approach that the majority of children with cancer in this country are at very low risk from COVID-19 and that we do not have good evidence to modify their treatment.”

Dr. Millen pointed out that the data in the U.K. study were “remarkably similar” to those from the high-income countries in the global St. Jude/SIOP cohort, where 7.4% of patients in that cohort had severe or critical disease, compared with 7.4% of patients from their own U.K. cohort.

“I think many of the key differences between the two cohorts reflect the fact that access to treatment in many low- to middle-income countries is more challenging with many factors contributing to overall poorer outcomes for both cancer and noncancer metrics,” Dr. Millen said.

Both the U.K. and registry studies were performed prior to vaccinations becoming available to older children, and before the emergence of certain variants, including the Delta variant, which is responsible for the most recent surge of COVID-19 infections around the world.

Data on COVID-19 vaccination in children with cancer are limited but promising so far.

As for whether the Delta variant might affect outcomes for children with cancer and COVID-19, Dr. Mukkada could only speculate, but she noted that “what we are hearing anecdotally about the [Delta] disease being more severe, even in patients who don’t have cancer, is leading us to say that we can’t close the registry yet. We are still actively enrolling children.”

The study was funded by the American Lebanese Syrian Associated Charities and the National Cancer Institute. The study authors and Dr. Millen disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

COVID-19 has now killed at least 675,000 Americans, a death toll that has surpassed the estimates of the number of Americans who died during the 1918 influenza pandemic, according to data collected by Johns Hopkins University.

Although the raw numbers match, epidemiologists point out that 675,000 deaths in 1918 was a much greater proportion of the population. In 1918, the U.S. population was 105 million, less than one third of what it is today.

The AIDS pandemic of the 1980s remains the deadliest of the 20th Century, claiming the lives of 700,000 Americans. But at our current pace of 2,000 COVID deaths a day, we could quickly eclipse that death toll, too.

Even though the 1918 epidemic is often called the “Spanish Flu,” there is no universal consensus regarding where the virus originated, according to the Centers for Disease Control and Prevention.

Still, the almost incomprehensible loss harkens back to a time when medicine and technology were far less advanced than they are today.

In 1918, the United States didn’t have access to a vaccine, or near real-time tools to trace the spread and communicate the threat.

In some ways, the United States has failed to learn from the mistakes of the past.

There are many similarities between the two pandemics. In the spring of 1918, when the first wave of influenza hit, the United States and its allies were nearing victory in Europe in World War I. Just this summer the United States has ended its longest war, the conflict in Afghanistan, as COVID cases surge.

In both pandemics, hospitals and funeral homes were overrun and makeshift clinics were opened where space was available. Mask mandates were installed; schools, churches, and theaters closed; and social distancing was encouraged.

As is the case today, different jurisdictions took different steps to fight the pandemic and some were more successful than others.

According to History.com, in 1918, Philadelphia’s mayor said a popular annual parade could be held, and an estimated 200,000 people attended. In less than 2 weeks, more than 1,000 local residents were dead. But in St. Louis, public gatherings were banned, schools and theaters closed, and the death toll there was one eighth of Philadelphia’s.

Just as in 1918, America has at times continued to fan the flames of the epidemic by relaxing restrictions too quickly and relying on unproven treatments. Poor communication allowed younger people to feel that they wouldn’t necessarily face the worst consequences of the virus, contributing to a false sense of security in the age group that was fueling the spread.

“A lot of the mistakes that we definitely fell into in 1918, we hoped we wouldn’t fall into in 2020,” epidemiologist Stephen Kissler, PhD, of the Harvard T.H. Chan School of Public Health, told CNN. “We did.”

A version of this article first appeared on Medscape.com.

COVID-19 has now killed at least 675,000 Americans, a death toll that has surpassed the estimates of the number of Americans who died during the 1918 influenza pandemic, according to data collected by Johns Hopkins University.

Although the raw numbers match, epidemiologists point out that 675,000 deaths in 1918 was a much greater proportion of the population. In 1918, the U.S. population was 105 million, less than one third of what it is today.

The AIDS pandemic of the 1980s remains the deadliest of the 20th Century, claiming the lives of 700,000 Americans. But at our current pace of 2,000 COVID deaths a day, we could quickly eclipse that death toll, too.

Even though the 1918 epidemic is often called the “Spanish Flu,” there is no universal consensus regarding where the virus originated, according to the Centers for Disease Control and Prevention.

Still, the almost incomprehensible loss harkens back to a time when medicine and technology were far less advanced than they are today.

In 1918, the United States didn’t have access to a vaccine, or near real-time tools to trace the spread and communicate the threat.

In some ways, the United States has failed to learn from the mistakes of the past.

There are many similarities between the two pandemics. In the spring of 1918, when the first wave of influenza hit, the United States and its allies were nearing victory in Europe in World War I. Just this summer the United States has ended its longest war, the conflict in Afghanistan, as COVID cases surge.

In both pandemics, hospitals and funeral homes were overrun and makeshift clinics were opened where space was available. Mask mandates were installed; schools, churches, and theaters closed; and social distancing was encouraged.

As is the case today, different jurisdictions took different steps to fight the pandemic and some were more successful than others.

According to History.com, in 1918, Philadelphia’s mayor said a popular annual parade could be held, and an estimated 200,000 people attended. In less than 2 weeks, more than 1,000 local residents were dead. But in St. Louis, public gatherings were banned, schools and theaters closed, and the death toll there was one eighth of Philadelphia’s.

Just as in 1918, America has at times continued to fan the flames of the epidemic by relaxing restrictions too quickly and relying on unproven treatments. Poor communication allowed younger people to feel that they wouldn’t necessarily face the worst consequences of the virus, contributing to a false sense of security in the age group that was fueling the spread.

“A lot of the mistakes that we definitely fell into in 1918, we hoped we wouldn’t fall into in 2020,” epidemiologist Stephen Kissler, PhD, of the Harvard T.H. Chan School of Public Health, told CNN. “We did.”

A version of this article first appeared on Medscape.com.

COVID-19 has now killed at least 675,000 Americans, a death toll that has surpassed the estimates of the number of Americans who died during the 1918 influenza pandemic, according to data collected by Johns Hopkins University.

Although the raw numbers match, epidemiologists point out that 675,000 deaths in 1918 was a much greater proportion of the population. In 1918, the U.S. population was 105 million, less than one third of what it is today.

The AIDS pandemic of the 1980s remains the deadliest of the 20th Century, claiming the lives of 700,000 Americans. But at our current pace of 2,000 COVID deaths a day, we could quickly eclipse that death toll, too.

Even though the 1918 epidemic is often called the “Spanish Flu,” there is no universal consensus regarding where the virus originated, according to the Centers for Disease Control and Prevention.

Still, the almost incomprehensible loss harkens back to a time when medicine and technology were far less advanced than they are today.

In 1918, the United States didn’t have access to a vaccine, or near real-time tools to trace the spread and communicate the threat.

In some ways, the United States has failed to learn from the mistakes of the past.

There are many similarities between the two pandemics. In the spring of 1918, when the first wave of influenza hit, the United States and its allies were nearing victory in Europe in World War I. Just this summer the United States has ended its longest war, the conflict in Afghanistan, as COVID cases surge.

In both pandemics, hospitals and funeral homes were overrun and makeshift clinics were opened where space was available. Mask mandates were installed; schools, churches, and theaters closed; and social distancing was encouraged.

As is the case today, different jurisdictions took different steps to fight the pandemic and some were more successful than others.

According to History.com, in 1918, Philadelphia’s mayor said a popular annual parade could be held, and an estimated 200,000 people attended. In less than 2 weeks, more than 1,000 local residents were dead. But in St. Louis, public gatherings were banned, schools and theaters closed, and the death toll there was one eighth of Philadelphia’s.

Just as in 1918, America has at times continued to fan the flames of the epidemic by relaxing restrictions too quickly and relying on unproven treatments. Poor communication allowed younger people to feel that they wouldn’t necessarily face the worst consequences of the virus, contributing to a false sense of security in the age group that was fueling the spread.

“A lot of the mistakes that we definitely fell into in 1918, we hoped we wouldn’t fall into in 2020,” epidemiologist Stephen Kissler, PhD, of the Harvard T.H. Chan School of Public Health, told CNN. “We did.”

A version of this article first appeared on Medscape.com.

A nationwide study of more than 3,600 adults found the Moderna vaccine does a better job at preventing COVID-19 hospitalizations than the two other vaccines being used in the United States, the Centers for Disease Control and Protection has said.

“Among U.S. adults without immunocompromising conditions, vaccine effectiveness against COVID-19 hospitalization during March 11–Aug. 15, 2021, was higher for the Moderna vaccine (93%) than the Pfizer-BioNTech vaccine (88%) and the Janssen vaccine (71%),” the agency’s Morbidity and Mortality Weekly Report said. Janssen refers to the Johnson & Johnson vaccine.

The CDC said the data could help people make informed decisions.

“Understanding differences in VE [vaccine effectiveness] by vaccine product can guide individual choices and policy recommendations regarding vaccine boosters. All Food and Drug Administration–approved or authorized COVID-19 vaccines provide substantial protection against COVID-19 hospitalization,” the report said.

The study also broke down effectiveness for longer periods. Moderna came out on top again.

After 120 days, the Moderna vaccine provided 92% effectiveness against hospitalization, whereas the Pfizer vaccine’s effectiveness dropped to 77%, the CDC said. There was no similar calculation for the Johnson & Johnson vaccine.

The CDC studied 3,689 adults at 21 hospitals in 18 states who got the two-shot Pfizer or Moderna vaccine or the one-shot Johnson & Johnson vaccine between March and August.

The agency noted some factors that could have come into play.

“Differences in vaccine effectiveness between the Moderna and Pfizer-BioNTech vaccine might be due to higher mRNA content in the Moderna vaccine, differences in timing between doses (3 weeks for Pfizer-BioNTech vs. 4 weeks for Moderna), or possible differences between groups that received each vaccine that were not accounted for in the analysis,” the report said.

The CDC noted limitations in the findings. Children, immunocompromised adults, and vaccine effectiveness against COVID-19 that did not result in hospitalization were not studied.

Other studies have shown all three U.S. vaccines provide a high rate of protection against coronavirus.

A version of this article first appeared on WebMD.com.

A nationwide study of more than 3,600 adults found the Moderna vaccine does a better job at preventing COVID-19 hospitalizations than the two other vaccines being used in the United States, the Centers for Disease Control and Protection has said.

“Among U.S. adults without immunocompromising conditions, vaccine effectiveness against COVID-19 hospitalization during March 11–Aug. 15, 2021, was higher for the Moderna vaccine (93%) than the Pfizer-BioNTech vaccine (88%) and the Janssen vaccine (71%),” the agency’s Morbidity and Mortality Weekly Report said. Janssen refers to the Johnson & Johnson vaccine.

The CDC said the data could help people make informed decisions.

“Understanding differences in VE [vaccine effectiveness] by vaccine product can guide individual choices and policy recommendations regarding vaccine boosters. All Food and Drug Administration–approved or authorized COVID-19 vaccines provide substantial protection against COVID-19 hospitalization,” the report said.

The study also broke down effectiveness for longer periods. Moderna came out on top again.

After 120 days, the Moderna vaccine provided 92% effectiveness against hospitalization, whereas the Pfizer vaccine’s effectiveness dropped to 77%, the CDC said. There was no similar calculation for the Johnson & Johnson vaccine.

The CDC studied 3,689 adults at 21 hospitals in 18 states who got the two-shot Pfizer or Moderna vaccine or the one-shot Johnson & Johnson vaccine between March and August.

The agency noted some factors that could have come into play.

“Differences in vaccine effectiveness between the Moderna and Pfizer-BioNTech vaccine might be due to higher mRNA content in the Moderna vaccine, differences in timing between doses (3 weeks for Pfizer-BioNTech vs. 4 weeks for Moderna), or possible differences between groups that received each vaccine that were not accounted for in the analysis,” the report said.

The CDC noted limitations in the findings. Children, immunocompromised adults, and vaccine effectiveness against COVID-19 that did not result in hospitalization were not studied.

Other studies have shown all three U.S. vaccines provide a high rate of protection against coronavirus.

A version of this article first appeared on WebMD.com.

A nationwide study of more than 3,600 adults found the Moderna vaccine does a better job at preventing COVID-19 hospitalizations than the two other vaccines being used in the United States, the Centers for Disease Control and Protection has said.

“Among U.S. adults without immunocompromising conditions, vaccine effectiveness against COVID-19 hospitalization during March 11–Aug. 15, 2021, was higher for the Moderna vaccine (93%) than the Pfizer-BioNTech vaccine (88%) and the Janssen vaccine (71%),” the agency’s Morbidity and Mortality Weekly Report said. Janssen refers to the Johnson & Johnson vaccine.

The CDC said the data could help people make informed decisions.

“Understanding differences in VE [vaccine effectiveness] by vaccine product can guide individual choices and policy recommendations regarding vaccine boosters. All Food and Drug Administration–approved or authorized COVID-19 vaccines provide substantial protection against COVID-19 hospitalization,” the report said.

The study also broke down effectiveness for longer periods. Moderna came out on top again.

After 120 days, the Moderna vaccine provided 92% effectiveness against hospitalization, whereas the Pfizer vaccine’s effectiveness dropped to 77%, the CDC said. There was no similar calculation for the Johnson & Johnson vaccine.

The CDC studied 3,689 adults at 21 hospitals in 18 states who got the two-shot Pfizer or Moderna vaccine or the one-shot Johnson & Johnson vaccine between March and August.

The agency noted some factors that could have come into play.

“Differences in vaccine effectiveness between the Moderna and Pfizer-BioNTech vaccine might be due to higher mRNA content in the Moderna vaccine, differences in timing between doses (3 weeks for Pfizer-BioNTech vs. 4 weeks for Moderna), or possible differences between groups that received each vaccine that were not accounted for in the analysis,” the report said.

The CDC noted limitations in the findings. Children, immunocompromised adults, and vaccine effectiveness against COVID-19 that did not result in hospitalization were not studied.

Other studies have shown all three U.S. vaccines provide a high rate of protection against coronavirus.

A version of this article first appeared on WebMD.com.