MDedge Rheumatology

Older age, higher subjective disease activity, and exercising for more than 120 minutes per week were three factors linked to patients with ankylosing spondylitis (AS) who switched from their original tumor necrosis factor inhibitor (TNFi) treatment within 2 years in a U.S.-based study.

Data from the Prospective Study of Outcomes in Ankylosing Spondylitis (PSOAS) also found that higher levels of inflammation, but not radiographic disease, were linked to patients changing from one TNFi to another, or to an interleukin (IL)-17 inhibitor or Janus kinase (JAK) inhibitor.

“Different factors were associated in AS patients who switch from their initial TNF inhibitor to another TNF inhibitor, IL-17 inhibitor, or JAK inhibitor within 2 years versus after 2 years of treatment,” John D. Reveille, MD, professor and vice chair of rheumatology and clinical immunogenetics with McGovern Medical School at UTHealth Houston, said at the 12th International Congress on Spondyloarthritides.

“We’re currently looking at different approaches to analyzing these data. And, certainly, this needs need to be looked at in other cohorts,” Dr. Reveille said.

PSOAS is a prospective observational cohort study that has been looking at predictors of AS severity for almost 20 years. Started in 2002, the study has routinely collected a whole host of data on various demographic and disease-related factors.

The reasoning behind the current analysis of PSOAS data was that a relatively recent study based on a commercial claims database had found that many patients with AS do not remain on their initial TNFi 2 years after initiation. So, Dr. Reveille and associates decided to look at the factors that could be influencing whether patients who started a TNFi would remain on their original drug in the PSOAS cohort.

In all, 533 patients from the PSOAS cohort who had at least 2 years of follow-up were included in the analysis. The majority (n = 496) were treated with a TNFi, 34 had received an IL-17 inhibitor, and 3 had received a JAK inhibitor.

Of the 496 patients treated with a TNFi, almost 70% (n = 344) persisted with this treatment for the duration of the study. Of those that switched to another TNFi or IL-17 or JAK inhibitor treatment, 20% (n = 101) did so within 2 years and the remaining 10% (n = 51) after 2 years.

Multinominal logistic regression modeling revealed a number of different factors that were associated with switching within 2 years versus switching after 2 years.

Compared to patients who persisted with treatment throughout the study period, patients who switched from their original TNFi within 2 years were more likely to be older (odds ratio [OR], 2.0 for ≥ 40 vs. < 40 years; P = .002), have a higher Bath Ankylosing Spondyloarthritis Disease Activity Index (BASDAI) score at baseline (OR, 1.73 for ≥ 4 vs. < 4; P = .03), higher C-reactive protein levels (OR, 1.94 for ≥ 0.8 mg/dL vs. < 0.8 mg/dL, P = .004), and greater weekly duration of exercise (OR, 1.95 for ≥ 120 minutes per week vs. < 120; P <.001).

Switchers also were less likely to have severe radiographic disease at baseline, as determined by the modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS, OR, 0.63; P = .03), and less likely to be current smokers (OR, 0.69; P < .001).

Factors associated with switching after 2 years versus persisting with treatment were higher baseline BASDAI (OR, 2.31; P = .01), exercising more than 120 minutes per week (OR, 1.66; P = .03), and having more comorbidities (OR, 1.63 for ≥ 2 vs. < 2, P = .04).

However, patients who switched after 2 years were less likely to be depressed (OR, 0.35; P = .002) or to have a longer baseline disease duration (OR, 0.27 for ≥ 20 years vs. < 20 years P < .001).

The association observed between switching within 2 years and lower likelihood of currently smoking was a “little bit puzzling,” one delegate said after Dr. Reveille’s presentation. “The opposite has been shown in the literature, and current smokers seem to be refractory to TNF inhibitor therapy,” the delegate observed.

“I was confounded when I saw the data,” Dr. Reveille acknowledged. Because this was an observational study, this finding needs more investigation, he agreed. “Interestingly, we have seen this negative association with some other parameters, too,” he added.

The HLA-B27 carrier and radiographic status were carefully checked, so there should not be a problem with the diagnosis, Dr. Reveille reassured. Further analyses of the findings are now warranted.

Funding for the study was provided by the U.S. Department of Health and Human Services, the National Institutes of Health, and the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Additional funding was received from the Spondyloarthritis Association of America and Eli Lilly.

Dr. Reveille made no personal disclosures; a coauthor of the abstract was an employee of Eli Lilly.

Older age, higher subjective disease activity, and exercising for more than 120 minutes per week were three factors linked to patients with ankylosing spondylitis (AS) who switched from their original tumor necrosis factor inhibitor (TNFi) treatment within 2 years in a U.S.-based study.

Data from the Prospective Study of Outcomes in Ankylosing Spondylitis (PSOAS) also found that higher levels of inflammation, but not radiographic disease, were linked to patients changing from one TNFi to another, or to an interleukin (IL)-17 inhibitor or Janus kinase (JAK) inhibitor.

“Different factors were associated in AS patients who switch from their initial TNF inhibitor to another TNF inhibitor, IL-17 inhibitor, or JAK inhibitor within 2 years versus after 2 years of treatment,” John D. Reveille, MD, professor and vice chair of rheumatology and clinical immunogenetics with McGovern Medical School at UTHealth Houston, said at the 12th International Congress on Spondyloarthritides.

“We’re currently looking at different approaches to analyzing these data. And, certainly, this needs need to be looked at in other cohorts,” Dr. Reveille said.

PSOAS is a prospective observational cohort study that has been looking at predictors of AS severity for almost 20 years. Started in 2002, the study has routinely collected a whole host of data on various demographic and disease-related factors.

The reasoning behind the current analysis of PSOAS data was that a relatively recent study based on a commercial claims database had found that many patients with AS do not remain on their initial TNFi 2 years after initiation. So, Dr. Reveille and associates decided to look at the factors that could be influencing whether patients who started a TNFi would remain on their original drug in the PSOAS cohort.

In all, 533 patients from the PSOAS cohort who had at least 2 years of follow-up were included in the analysis. The majority (n = 496) were treated with a TNFi, 34 had received an IL-17 inhibitor, and 3 had received a JAK inhibitor.

Of the 496 patients treated with a TNFi, almost 70% (n = 344) persisted with this treatment for the duration of the study. Of those that switched to another TNFi or IL-17 or JAK inhibitor treatment, 20% (n = 101) did so within 2 years and the remaining 10% (n = 51) after 2 years.

Multinominal logistic regression modeling revealed a number of different factors that were associated with switching within 2 years versus switching after 2 years.

Compared to patients who persisted with treatment throughout the study period, patients who switched from their original TNFi within 2 years were more likely to be older (odds ratio [OR], 2.0 for ≥ 40 vs. < 40 years; P = .002), have a higher Bath Ankylosing Spondyloarthritis Disease Activity Index (BASDAI) score at baseline (OR, 1.73 for ≥ 4 vs. < 4; P = .03), higher C-reactive protein levels (OR, 1.94 for ≥ 0.8 mg/dL vs. < 0.8 mg/dL, P = .004), and greater weekly duration of exercise (OR, 1.95 for ≥ 120 minutes per week vs. < 120; P <.001).

Switchers also were less likely to have severe radiographic disease at baseline, as determined by the modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS, OR, 0.63; P = .03), and less likely to be current smokers (OR, 0.69; P < .001).

Factors associated with switching after 2 years versus persisting with treatment were higher baseline BASDAI (OR, 2.31; P = .01), exercising more than 120 minutes per week (OR, 1.66; P = .03), and having more comorbidities (OR, 1.63 for ≥ 2 vs. < 2, P = .04).

However, patients who switched after 2 years were less likely to be depressed (OR, 0.35; P = .002) or to have a longer baseline disease duration (OR, 0.27 for ≥ 20 years vs. < 20 years P < .001).

The association observed between switching within 2 years and lower likelihood of currently smoking was a “little bit puzzling,” one delegate said after Dr. Reveille’s presentation. “The opposite has been shown in the literature, and current smokers seem to be refractory to TNF inhibitor therapy,” the delegate observed.

“I was confounded when I saw the data,” Dr. Reveille acknowledged. Because this was an observational study, this finding needs more investigation, he agreed. “Interestingly, we have seen this negative association with some other parameters, too,” he added.

The HLA-B27 carrier and radiographic status were carefully checked, so there should not be a problem with the diagnosis, Dr. Reveille reassured. Further analyses of the findings are now warranted.

Funding for the study was provided by the U.S. Department of Health and Human Services, the National Institutes of Health, and the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Additional funding was received from the Spondyloarthritis Association of America and Eli Lilly.

Dr. Reveille made no personal disclosures; a coauthor of the abstract was an employee of Eli Lilly.

Older age, higher subjective disease activity, and exercising for more than 120 minutes per week were three factors linked to patients with ankylosing spondylitis (AS) who switched from their original tumor necrosis factor inhibitor (TNFi) treatment within 2 years in a U.S.-based study.

Data from the Prospective Study of Outcomes in Ankylosing Spondylitis (PSOAS) also found that higher levels of inflammation, but not radiographic disease, were linked to patients changing from one TNFi to another, or to an interleukin (IL)-17 inhibitor or Janus kinase (JAK) inhibitor.

“Different factors were associated in AS patients who switch from their initial TNF inhibitor to another TNF inhibitor, IL-17 inhibitor, or JAK inhibitor within 2 years versus after 2 years of treatment,” John D. Reveille, MD, professor and vice chair of rheumatology and clinical immunogenetics with McGovern Medical School at UTHealth Houston, said at the 12th International Congress on Spondyloarthritides.

“We’re currently looking at different approaches to analyzing these data. And, certainly, this needs need to be looked at in other cohorts,” Dr. Reveille said.

PSOAS is a prospective observational cohort study that has been looking at predictors of AS severity for almost 20 years. Started in 2002, the study has routinely collected a whole host of data on various demographic and disease-related factors.

The reasoning behind the current analysis of PSOAS data was that a relatively recent study based on a commercial claims database had found that many patients with AS do not remain on their initial TNFi 2 years after initiation. So, Dr. Reveille and associates decided to look at the factors that could be influencing whether patients who started a TNFi would remain on their original drug in the PSOAS cohort.

In all, 533 patients from the PSOAS cohort who had at least 2 years of follow-up were included in the analysis. The majority (n = 496) were treated with a TNFi, 34 had received an IL-17 inhibitor, and 3 had received a JAK inhibitor.

Of the 496 patients treated with a TNFi, almost 70% (n = 344) persisted with this treatment for the duration of the study. Of those that switched to another TNFi or IL-17 or JAK inhibitor treatment, 20% (n = 101) did so within 2 years and the remaining 10% (n = 51) after 2 years.

Multinominal logistic regression modeling revealed a number of different factors that were associated with switching within 2 years versus switching after 2 years.

Compared to patients who persisted with treatment throughout the study period, patients who switched from their original TNFi within 2 years were more likely to be older (odds ratio [OR], 2.0 for ≥ 40 vs. < 40 years; P = .002), have a higher Bath Ankylosing Spondyloarthritis Disease Activity Index (BASDAI) score at baseline (OR, 1.73 for ≥ 4 vs. < 4; P = .03), higher C-reactive protein levels (OR, 1.94 for ≥ 0.8 mg/dL vs. < 0.8 mg/dL, P = .004), and greater weekly duration of exercise (OR, 1.95 for ≥ 120 minutes per week vs. < 120; P <.001).

Switchers also were less likely to have severe radiographic disease at baseline, as determined by the modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS, OR, 0.63; P = .03), and less likely to be current smokers (OR, 0.69; P < .001).

Factors associated with switching after 2 years versus persisting with treatment were higher baseline BASDAI (OR, 2.31; P = .01), exercising more than 120 minutes per week (OR, 1.66; P = .03), and having more comorbidities (OR, 1.63 for ≥ 2 vs. < 2, P = .04).

However, patients who switched after 2 years were less likely to be depressed (OR, 0.35; P = .002) or to have a longer baseline disease duration (OR, 0.27 for ≥ 20 years vs. < 20 years P < .001).

The association observed between switching within 2 years and lower likelihood of currently smoking was a “little bit puzzling,” one delegate said after Dr. Reveille’s presentation. “The opposite has been shown in the literature, and current smokers seem to be refractory to TNF inhibitor therapy,” the delegate observed.

“I was confounded when I saw the data,” Dr. Reveille acknowledged. Because this was an observational study, this finding needs more investigation, he agreed. “Interestingly, we have seen this negative association with some other parameters, too,” he added.

The HLA-B27 carrier and radiographic status were carefully checked, so there should not be a problem with the diagnosis, Dr. Reveille reassured. Further analyses of the findings are now warranted.

Funding for the study was provided by the U.S. Department of Health and Human Services, the National Institutes of Health, and the National Institute of Arthritis and Musculoskeletal and Skin Diseases. Additional funding was received from the Spondyloarthritis Association of America and Eli Lilly.

Dr. Reveille made no personal disclosures; a coauthor of the abstract was an employee of Eli Lilly.

The director of the Centers for Disease Control and Prevention late Thursday overruled the recommendation of the agency’s advisory panel to broaden the number of Americans who are now eligible for a third dose of the Pfizer COVID-19 vaccine.

The CDC’s Advisory Committee on Immunization Practices earlier Thursday voted to allow several groups of Americans to get a booster shot, but voted not to recommend it for adults age 18 to 64 who live or work in a place where the risk of COVID-19 is high. That would have included health care workers and other frontline employees.

But CDC Director Rochelle Walensky, MD, decided to reverse that recommendation and include the 18-to-64-year-olds in her final decision.

“As CDC Director, it is my job to recognize where our actions can have the greatest impact,” Dr. Walensky said in a statement late Thursday night, according to published reports. “At CDC, we are tasked with analyzing complex, often imperfect data to make concrete recommendations that optimize health. In a pandemic, even with uncertainty, we must take actions that we anticipate will do the greatest good.”

Dr. Walensky agreed with the rest of the advisory committee's decisions, which included recommendations that the following groups also be eligible for a booster shot:

• Adults ages 65 and up and residents of long-term care facilities
• Adults ages 50 to 64 who have an underlying medical condition that may increase their risk from a COVID infection
• Adults ages 18 to 49 who may be at increased risk from a COVID-19 infection because of an underlying medical condition, if a person feels like they need one based on a consideration of their individual benefit and risks.

About 26 million Americans are at least 6 months past the last dose of the Pfizer vaccines, making them eligible to receive a third dose.  About 13.6 million of them are over the age of 65.  Another 5.3 million are ages 50 to 64.

In making the recommendations, the committee left out healthcare workers. This was a departure from the Food and Drug Administration’s authorization which included boosters for those 65 and over, and for people 18 through 64 years of age who are at high risk for severe illness from the coronavirus, including essential workers – such as those in healthcare -- whose jobs increase their risk for infection.

This is the group Dr. Walensky added to the eligible list on her own.

Committee members “did not buy the need in occupational or institutional settings,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville.  Dr. Schaffner sits on the ACIP workgroup that considered the evidence behind boosters. He said that he would have voted yes to offer boosters to healthcare and other essential workers.

“There was a real split in the committee,” he said.

The vote on boosters for healthcare and other high-risk workers was rejected 9 to 6.

“I think that there is ample evidence that people such as healthcare workers do not have repeated exposure in the workplace,” said Beth Bell, MD, a clinical professor at the University of Washington. “They’re using PPE as they should and they’re following the other policies within the healthcare setting. There’s lots of evidence that suggest that health care workers who become infected become infected because of exposures in the community.”

She was not alone in feeling cautious.

“I think this is an extremely slippery slope,” said Sarah Long, MD, a pediatric infectious disease specialist at Drexel University in Philadelphia, before her vote to reject boosters for healthcare and other high-risk workers.

“We might as well just say, ‘Give it to everybody 18 and over.’ We have an extremely effective vaccine. It’s like saying it’s not working, and it is working.”

The committee saw data showing that all of the vaccines remain highly protective against hospitalization and death for all age groups, though protection against getting sick with COVID has waned slightly over time and with the dominance of the more contagious Delta variant. Those at highest risk for a severe breakthrough infection — those that cause hospitalization or death — are older adults.
 

How much will the U.S. benefit from boosters?

Some felt squeamish about broadly recommending boosters at all.

“We have too much hope on the line with these boosters,” said James Loehr, MD, who is a family physician in Ithaca, N.Y. Dr. Loehr said he felt the goal of giving boosters in the United States should be to decrease hospitalizations, and he felt they would, but that the impact would likely be smaller than appreciated.

Based on his calculations of the benefits of boosters for each age group, Dr. Loehr said if boosters were given to all 13 million seniors previously vaccinated with the Pfizer vaccine, we might prevent 200 hospitalizations a day, “which would be a lot,” he noted. But, he said, “considering that we have 10,000 hospitalizations a day now, it’s probably not that much.”

Others agreed.

“I really think this is a solution looking for a problem,” said Jason Goldman, MD, an associate professor at Florida Atlantic University who was representing the American College of Physicians. “You know, I don’t think it’s going to address the issue of the pandemic. I really think it’s just going to create more confusion on the provider from the position of implementation, and I really think it’s going really far afield of the data.”

ACIP Chair Grace Lee, MD, a pediatric infectious disease specialist at Stanford, said she had cared for children who had died of COVID.

“I can tell you that their family members really wished they had extra protection for their kids, because they weren’t symptomatic. Nobody else was sick at home,” she said.

Dr. Lee said for her, access was paramount, and she was in favor of expanding access to boosters for as many people as possible.
 

Next steps

People who were initially vaccinated with either Moderna or Johnson & Johnson vaccines are excluded from booster recommendations, something many on the committee were uncomfortable with.

The FDA is still considering Moderna’s application to market booster doses. Johnson & Johnson hasn’t yet applied to the FDA for permission to offer second doses in the United States.

While the ACIP’s recommendations are important, in this case, they may not have a huge practical effect, said Schaffner. The CDC has already approved third shots for people who are immunocompromised, and no proof of a medical condition is required to get one.

More than 2 million people have already gotten a third dose, he noted, and not all of them are immunocompromised.

“They have heard the president say that, you know, everybody should get a booster, and they’ve taken that at face value,” he said.

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

The director of the Centers for Disease Control and Prevention late Thursday overruled the recommendation of the agency’s advisory panel to broaden the number of Americans who are now eligible for a third dose of the Pfizer COVID-19 vaccine.

The CDC’s Advisory Committee on Immunization Practices earlier Thursday voted to allow several groups of Americans to get a booster shot, but voted not to recommend it for adults age 18 to 64 who live or work in a place where the risk of COVID-19 is high. That would have included health care workers and other frontline employees.

But CDC Director Rochelle Walensky, MD, decided to reverse that recommendation and include the 18-to-64-year-olds in her final decision.

“As CDC Director, it is my job to recognize where our actions can have the greatest impact,” Dr. Walensky said in a statement late Thursday night, according to published reports. “At CDC, we are tasked with analyzing complex, often imperfect data to make concrete recommendations that optimize health. In a pandemic, even with uncertainty, we must take actions that we anticipate will do the greatest good.”

Dr. Walensky agreed with the rest of the advisory committee's decisions, which included recommendations that the following groups also be eligible for a booster shot:

• Adults ages 65 and up and residents of long-term care facilities
• Adults ages 50 to 64 who have an underlying medical condition that may increase their risk from a COVID infection
• Adults ages 18 to 49 who may be at increased risk from a COVID-19 infection because of an underlying medical condition, if a person feels like they need one based on a consideration of their individual benefit and risks.

About 26 million Americans are at least 6 months past the last dose of the Pfizer vaccines, making them eligible to receive a third dose.  About 13.6 million of them are over the age of 65.  Another 5.3 million are ages 50 to 64.

In making the recommendations, the committee left out healthcare workers. This was a departure from the Food and Drug Administration’s authorization which included boosters for those 65 and over, and for people 18 through 64 years of age who are at high risk for severe illness from the coronavirus, including essential workers – such as those in healthcare -- whose jobs increase their risk for infection.

This is the group Dr. Walensky added to the eligible list on her own.

Committee members “did not buy the need in occupational or institutional settings,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville.  Dr. Schaffner sits on the ACIP workgroup that considered the evidence behind boosters. He said that he would have voted yes to offer boosters to healthcare and other essential workers.

“There was a real split in the committee,” he said.

The vote on boosters for healthcare and other high-risk workers was rejected 9 to 6.

“I think that there is ample evidence that people such as healthcare workers do not have repeated exposure in the workplace,” said Beth Bell, MD, a clinical professor at the University of Washington. “They’re using PPE as they should and they’re following the other policies within the healthcare setting. There’s lots of evidence that suggest that health care workers who become infected become infected because of exposures in the community.”

She was not alone in feeling cautious.

“I think this is an extremely slippery slope,” said Sarah Long, MD, a pediatric infectious disease specialist at Drexel University in Philadelphia, before her vote to reject boosters for healthcare and other high-risk workers.

“We might as well just say, ‘Give it to everybody 18 and over.’ We have an extremely effective vaccine. It’s like saying it’s not working, and it is working.”

The committee saw data showing that all of the vaccines remain highly protective against hospitalization and death for all age groups, though protection against getting sick with COVID has waned slightly over time and with the dominance of the more contagious Delta variant. Those at highest risk for a severe breakthrough infection — those that cause hospitalization or death — are older adults.
 

How much will the U.S. benefit from boosters?

Some felt squeamish about broadly recommending boosters at all.

“We have too much hope on the line with these boosters,” said James Loehr, MD, who is a family physician in Ithaca, N.Y. Dr. Loehr said he felt the goal of giving boosters in the United States should be to decrease hospitalizations, and he felt they would, but that the impact would likely be smaller than appreciated.

Based on his calculations of the benefits of boosters for each age group, Dr. Loehr said if boosters were given to all 13 million seniors previously vaccinated with the Pfizer vaccine, we might prevent 200 hospitalizations a day, “which would be a lot,” he noted. But, he said, “considering that we have 10,000 hospitalizations a day now, it’s probably not that much.”

Others agreed.

“I really think this is a solution looking for a problem,” said Jason Goldman, MD, an associate professor at Florida Atlantic University who was representing the American College of Physicians. “You know, I don’t think it’s going to address the issue of the pandemic. I really think it’s just going to create more confusion on the provider from the position of implementation, and I really think it’s going really far afield of the data.”

ACIP Chair Grace Lee, MD, a pediatric infectious disease specialist at Stanford, said she had cared for children who had died of COVID.

“I can tell you that their family members really wished they had extra protection for their kids, because they weren’t symptomatic. Nobody else was sick at home,” she said.

Dr. Lee said for her, access was paramount, and she was in favor of expanding access to boosters for as many people as possible.
 

Next steps

People who were initially vaccinated with either Moderna or Johnson & Johnson vaccines are excluded from booster recommendations, something many on the committee were uncomfortable with.

The FDA is still considering Moderna’s application to market booster doses. Johnson & Johnson hasn’t yet applied to the FDA for permission to offer second doses in the United States.

While the ACIP’s recommendations are important, in this case, they may not have a huge practical effect, said Schaffner. The CDC has already approved third shots for people who are immunocompromised, and no proof of a medical condition is required to get one.

More than 2 million people have already gotten a third dose, he noted, and not all of them are immunocompromised.

“They have heard the president say that, you know, everybody should get a booster, and they’ve taken that at face value,” he said.

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

The director of the Centers for Disease Control and Prevention late Thursday overruled the recommendation of the agency’s advisory panel to broaden the number of Americans who are now eligible for a third dose of the Pfizer COVID-19 vaccine.

The CDC’s Advisory Committee on Immunization Practices earlier Thursday voted to allow several groups of Americans to get a booster shot, but voted not to recommend it for adults age 18 to 64 who live or work in a place where the risk of COVID-19 is high. That would have included health care workers and other frontline employees.

But CDC Director Rochelle Walensky, MD, decided to reverse that recommendation and include the 18-to-64-year-olds in her final decision.

“As CDC Director, it is my job to recognize where our actions can have the greatest impact,” Dr. Walensky said in a statement late Thursday night, according to published reports. “At CDC, we are tasked with analyzing complex, often imperfect data to make concrete recommendations that optimize health. In a pandemic, even with uncertainty, we must take actions that we anticipate will do the greatest good.”

Dr. Walensky agreed with the rest of the advisory committee's decisions, which included recommendations that the following groups also be eligible for a booster shot:

• Adults ages 65 and up and residents of long-term care facilities
• Adults ages 50 to 64 who have an underlying medical condition that may increase their risk from a COVID infection
• Adults ages 18 to 49 who may be at increased risk from a COVID-19 infection because of an underlying medical condition, if a person feels like they need one based on a consideration of their individual benefit and risks.

About 26 million Americans are at least 6 months past the last dose of the Pfizer vaccines, making them eligible to receive a third dose.  About 13.6 million of them are over the age of 65.  Another 5.3 million are ages 50 to 64.

In making the recommendations, the committee left out healthcare workers. This was a departure from the Food and Drug Administration’s authorization which included boosters for those 65 and over, and for people 18 through 64 years of age who are at high risk for severe illness from the coronavirus, including essential workers – such as those in healthcare -- whose jobs increase their risk for infection.

This is the group Dr. Walensky added to the eligible list on her own.

Committee members “did not buy the need in occupational or institutional settings,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville.  Dr. Schaffner sits on the ACIP workgroup that considered the evidence behind boosters. He said that he would have voted yes to offer boosters to healthcare and other essential workers.

“There was a real split in the committee,” he said.

The vote on boosters for healthcare and other high-risk workers was rejected 9 to 6.

“I think that there is ample evidence that people such as healthcare workers do not have repeated exposure in the workplace,” said Beth Bell, MD, a clinical professor at the University of Washington. “They’re using PPE as they should and they’re following the other policies within the healthcare setting. There’s lots of evidence that suggest that health care workers who become infected become infected because of exposures in the community.”

She was not alone in feeling cautious.

“I think this is an extremely slippery slope,” said Sarah Long, MD, a pediatric infectious disease specialist at Drexel University in Philadelphia, before her vote to reject boosters for healthcare and other high-risk workers.

“We might as well just say, ‘Give it to everybody 18 and over.’ We have an extremely effective vaccine. It’s like saying it’s not working, and it is working.”

The committee saw data showing that all of the vaccines remain highly protective against hospitalization and death for all age groups, though protection against getting sick with COVID has waned slightly over time and with the dominance of the more contagious Delta variant. Those at highest risk for a severe breakthrough infection — those that cause hospitalization or death — are older adults.
 

How much will the U.S. benefit from boosters?

Some felt squeamish about broadly recommending boosters at all.

“We have too much hope on the line with these boosters,” said James Loehr, MD, who is a family physician in Ithaca, N.Y. Dr. Loehr said he felt the goal of giving boosters in the United States should be to decrease hospitalizations, and he felt they would, but that the impact would likely be smaller than appreciated.

Based on his calculations of the benefits of boosters for each age group, Dr. Loehr said if boosters were given to all 13 million seniors previously vaccinated with the Pfizer vaccine, we might prevent 200 hospitalizations a day, “which would be a lot,” he noted. But, he said, “considering that we have 10,000 hospitalizations a day now, it’s probably not that much.”

Others agreed.

“I really think this is a solution looking for a problem,” said Jason Goldman, MD, an associate professor at Florida Atlantic University who was representing the American College of Physicians. “You know, I don’t think it’s going to address the issue of the pandemic. I really think it’s just going to create more confusion on the provider from the position of implementation, and I really think it’s going really far afield of the data.”

ACIP Chair Grace Lee, MD, a pediatric infectious disease specialist at Stanford, said she had cared for children who had died of COVID.

“I can tell you that their family members really wished they had extra protection for their kids, because they weren’t symptomatic. Nobody else was sick at home,” she said.

Dr. Lee said for her, access was paramount, and she was in favor of expanding access to boosters for as many people as possible.
 

Next steps

People who were initially vaccinated with either Moderna or Johnson & Johnson vaccines are excluded from booster recommendations, something many on the committee were uncomfortable with.

The FDA is still considering Moderna’s application to market booster doses. Johnson & Johnson hasn’t yet applied to the FDA for permission to offer second doses in the United States.

While the ACIP’s recommendations are important, in this case, they may not have a huge practical effect, said Schaffner. The CDC has already approved third shots for people who are immunocompromised, and no proof of a medical condition is required to get one.

More than 2 million people have already gotten a third dose, he noted, and not all of them are immunocompromised.

“They have heard the president say that, you know, everybody should get a booster, and they’ve taken that at face value,” he said.

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

Remdesivir (Veklury, Gilead) was found to reduce some COVID-19 patients’ risk of hospitalization by 87% in a phase 3 trial, the drug’s manufacturer announced Sept. 22 in a press release.

The randomized, double-blind, placebo-controlled trial evaluated the efficacy and safety of a 3-day course of intravenous remdesivir in an analysis of 562 nonhospitalized patients at high risk for disease progression.

Remdesivir demonstrated a statistically significant 87% reduction in risk for COVID-19–related hospitalization or all-cause death by Day 28 (0.7% [2/279]) compared with placebo (5.3% [15/283]) P = .008. Participants were assigned 1:1 to remdesivir or the placebo group.

Researchers also found an 81% reduction in risk for the composite secondary endpoint – medical visits due to COVID-19 or all-cause death by Day 28. Only 1.6% had COVID-19 medical visits ([4/246]) compared with those in the placebo group (8.3% [21/252]) P = .002. No deaths were observed in either arm by Day 28.

“These latest data show remdesivir’s potential to help high-risk patients recover before they get sicker and stay out of the hospital altogether,” coauthor Robert L. Gottlieb, MD, PhD, from Baylor University Medical Center, Houston, said in the press release.

Remdesivir is the only drug approved by the U.S. Food and Drug Administration for hospitalized COVID-19 patients at least 12 years old. Its treatment of nonhospitalized patients with 3 days of dosing is investigational, and the safety and efficacy for this use and dosing duration have not been established or approved by any regulatory agency, the Gilead press release notes.

The patients in this study were considered high-risk for disease progression based on comorbidities – commonly obesity, hypertension, and diabetes – and age, but had not recently been hospitalized due to COVID-19.

A third of the participants were at least 60 years old. Participants in the study must have received a positive diagnosis within 4 days of starting treatment and experienced symptoms for 7 days or less.
 

Use of remdesivir controversial

Results from the Adaptive COVID-19 Treatment Trial (ACTT-1) showed remdesivir was superior to placebo in shortening time to recovery in adults hospitalized with COVID-19 with evidence of lower respiratory tract infection.

However, a large trial of more than 11,000 people in 30 countries, sponsored by the World Health Organization, did not show any benefit for the drug in reducing COVID deaths.

The WHO has conditionally recommended against using remdesivir in hospitalized patients, regardless of disease severity, “as there is currently no evidence that remdesivir improves survival and other outcomes in these patients.”

The drug also is given intravenously, and this study tested three infusions over 3 days, a difficult treatment for nonhospitalized patients.

The study results were released ahead of IDWeek, where the late-breaking abstract will be presented at the virtual conference in full at the end of next week.

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

Remdesivir (Veklury, Gilead) was found to reduce some COVID-19 patients’ risk of hospitalization by 87% in a phase 3 trial, the drug’s manufacturer announced Sept. 22 in a press release.

The randomized, double-blind, placebo-controlled trial evaluated the efficacy and safety of a 3-day course of intravenous remdesivir in an analysis of 562 nonhospitalized patients at high risk for disease progression.

Remdesivir demonstrated a statistically significant 87% reduction in risk for COVID-19–related hospitalization or all-cause death by Day 28 (0.7% [2/279]) compared with placebo (5.3% [15/283]) P = .008. Participants were assigned 1:1 to remdesivir or the placebo group.

Researchers also found an 81% reduction in risk for the composite secondary endpoint – medical visits due to COVID-19 or all-cause death by Day 28. Only 1.6% had COVID-19 medical visits ([4/246]) compared with those in the placebo group (8.3% [21/252]) P = .002. No deaths were observed in either arm by Day 28.

“These latest data show remdesivir’s potential to help high-risk patients recover before they get sicker and stay out of the hospital altogether,” coauthor Robert L. Gottlieb, MD, PhD, from Baylor University Medical Center, Houston, said in the press release.

Remdesivir is the only drug approved by the U.S. Food and Drug Administration for hospitalized COVID-19 patients at least 12 years old. Its treatment of nonhospitalized patients with 3 days of dosing is investigational, and the safety and efficacy for this use and dosing duration have not been established or approved by any regulatory agency, the Gilead press release notes.

The patients in this study were considered high-risk for disease progression based on comorbidities – commonly obesity, hypertension, and diabetes – and age, but had not recently been hospitalized due to COVID-19.

A third of the participants were at least 60 years old. Participants in the study must have received a positive diagnosis within 4 days of starting treatment and experienced symptoms for 7 days or less.
 

Use of remdesivir controversial

Results from the Adaptive COVID-19 Treatment Trial (ACTT-1) showed remdesivir was superior to placebo in shortening time to recovery in adults hospitalized with COVID-19 with evidence of lower respiratory tract infection.

However, a large trial of more than 11,000 people in 30 countries, sponsored by the World Health Organization, did not show any benefit for the drug in reducing COVID deaths.

The WHO has conditionally recommended against using remdesivir in hospitalized patients, regardless of disease severity, “as there is currently no evidence that remdesivir improves survival and other outcomes in these patients.”

The drug also is given intravenously, and this study tested three infusions over 3 days, a difficult treatment for nonhospitalized patients.

The study results were released ahead of IDWeek, where the late-breaking abstract will be presented at the virtual conference in full at the end of next week.

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

Remdesivir (Veklury, Gilead) was found to reduce some COVID-19 patients’ risk of hospitalization by 87% in a phase 3 trial, the drug’s manufacturer announced Sept. 22 in a press release.

The randomized, double-blind, placebo-controlled trial evaluated the efficacy and safety of a 3-day course of intravenous remdesivir in an analysis of 562 nonhospitalized patients at high risk for disease progression.

Remdesivir demonstrated a statistically significant 87% reduction in risk for COVID-19–related hospitalization or all-cause death by Day 28 (0.7% [2/279]) compared with placebo (5.3% [15/283]) P = .008. Participants were assigned 1:1 to remdesivir or the placebo group.

Researchers also found an 81% reduction in risk for the composite secondary endpoint – medical visits due to COVID-19 or all-cause death by Day 28. Only 1.6% had COVID-19 medical visits ([4/246]) compared with those in the placebo group (8.3% [21/252]) P = .002. No deaths were observed in either arm by Day 28.

“These latest data show remdesivir’s potential to help high-risk patients recover before they get sicker and stay out of the hospital altogether,” coauthor Robert L. Gottlieb, MD, PhD, from Baylor University Medical Center, Houston, said in the press release.

Remdesivir is the only drug approved by the U.S. Food and Drug Administration for hospitalized COVID-19 patients at least 12 years old. Its treatment of nonhospitalized patients with 3 days of dosing is investigational, and the safety and efficacy for this use and dosing duration have not been established or approved by any regulatory agency, the Gilead press release notes.

The patients in this study were considered high-risk for disease progression based on comorbidities – commonly obesity, hypertension, and diabetes – and age, but had not recently been hospitalized due to COVID-19.

A third of the participants were at least 60 years old. Participants in the study must have received a positive diagnosis within 4 days of starting treatment and experienced symptoms for 7 days or less.
 

Use of remdesivir controversial

Results from the Adaptive COVID-19 Treatment Trial (ACTT-1) showed remdesivir was superior to placebo in shortening time to recovery in adults hospitalized with COVID-19 with evidence of lower respiratory tract infection.

However, a large trial of more than 11,000 people in 30 countries, sponsored by the World Health Organization, did not show any benefit for the drug in reducing COVID deaths.

The WHO has conditionally recommended against using remdesivir in hospitalized patients, regardless of disease severity, “as there is currently no evidence that remdesivir improves survival and other outcomes in these patients.”

The drug also is given intravenously, and this study tested three infusions over 3 days, a difficult treatment for nonhospitalized patients.

The study results were released ahead of IDWeek, where the late-breaking abstract will be presented at the virtual conference in full at the end of next week.

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

A strain of COVID-19 first reported in Japan surfaced at a Kentucky nursing home in the spring.

Deadline, citing a Centers for Disease Control and Prevention report, said 26 residents and 20 workers tested positive for COVID-19 at a skilled care nursing home. The facility has 83 residents and 116 employees.

On March 1, 28 specimens that had been subjected to whole genome sequencing were found to have “mutations aligning with the R.1 lineage,” Deadline said.

About 90% of the facility’s residents and 52% of the staff had received two COVID vaccine doses, the CDC said. Because of the high vaccination rate, the finding raises concerns about “reduced protective immunity” in relation to the R.1 variant, the CDC said.

However, the nursing home case appears to show that the vaccine keeps most people from getting extremely sick, the CDC said. The vaccine was 86.5% protective against symptomatic illness among residents and 87.1% protective for employees.

“Compared with unvaccinated persons, vaccinated persons had reduced risk for SARS-CoV-2 infection and symptomatic COVID-19,” the CDC said. The vaccination of nursing home residents and health care workers “is essential to reduce the risk for symptomatic COVID-19, as is continued focus on infection prevention and control practices,” the CDC said.

Since being reported in Kentucky, R.1 has been detected more than 10,000 times in the United States, Forbes reported, basing that number on entries in the GISAID SARS-CoV-2 database.

Overall, more than 42 million cases of COVID have been reported since the start of the pandemic.

Deadline reported that the R.1 strain was first detected in Japan in January among three members of one family. The family members had no history of traveling abroad, Deadline said, citing an National Institutes of Health report.

The CDC has not classified R.1 as a variant of concern yet but noted it has “several mutations of importance” and “demonstrates evidence of increasing virus transmissibility.”

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

A strain of COVID-19 first reported in Japan surfaced at a Kentucky nursing home in the spring.

Deadline, citing a Centers for Disease Control and Prevention report, said 26 residents and 20 workers tested positive for COVID-19 at a skilled care nursing home. The facility has 83 residents and 116 employees.

On March 1, 28 specimens that had been subjected to whole genome sequencing were found to have “mutations aligning with the R.1 lineage,” Deadline said.

About 90% of the facility’s residents and 52% of the staff had received two COVID vaccine doses, the CDC said. Because of the high vaccination rate, the finding raises concerns about “reduced protective immunity” in relation to the R.1 variant, the CDC said.

However, the nursing home case appears to show that the vaccine keeps most people from getting extremely sick, the CDC said. The vaccine was 86.5% protective against symptomatic illness among residents and 87.1% protective for employees.

“Compared with unvaccinated persons, vaccinated persons had reduced risk for SARS-CoV-2 infection and symptomatic COVID-19,” the CDC said. The vaccination of nursing home residents and health care workers “is essential to reduce the risk for symptomatic COVID-19, as is continued focus on infection prevention and control practices,” the CDC said.

Since being reported in Kentucky, R.1 has been detected more than 10,000 times in the United States, Forbes reported, basing that number on entries in the GISAID SARS-CoV-2 database.

Overall, more than 42 million cases of COVID have been reported since the start of the pandemic.

Deadline reported that the R.1 strain was first detected in Japan in January among three members of one family. The family members had no history of traveling abroad, Deadline said, citing an National Institutes of Health report.

The CDC has not classified R.1 as a variant of concern yet but noted it has “several mutations of importance” and “demonstrates evidence of increasing virus transmissibility.”

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

A strain of COVID-19 first reported in Japan surfaced at a Kentucky nursing home in the spring.

Deadline, citing a Centers for Disease Control and Prevention report, said 26 residents and 20 workers tested positive for COVID-19 at a skilled care nursing home. The facility has 83 residents and 116 employees.

On March 1, 28 specimens that had been subjected to whole genome sequencing were found to have “mutations aligning with the R.1 lineage,” Deadline said.

About 90% of the facility’s residents and 52% of the staff had received two COVID vaccine doses, the CDC said. Because of the high vaccination rate, the finding raises concerns about “reduced protective immunity” in relation to the R.1 variant, the CDC said.

However, the nursing home case appears to show that the vaccine keeps most people from getting extremely sick, the CDC said. The vaccine was 86.5% protective against symptomatic illness among residents and 87.1% protective for employees.

“Compared with unvaccinated persons, vaccinated persons had reduced risk for SARS-CoV-2 infection and symptomatic COVID-19,” the CDC said. The vaccination of nursing home residents and health care workers “is essential to reduce the risk for symptomatic COVID-19, as is continued focus on infection prevention and control practices,” the CDC said.

Since being reported in Kentucky, R.1 has been detected more than 10,000 times in the United States, Forbes reported, basing that number on entries in the GISAID SARS-CoV-2 database.

Overall, more than 42 million cases of COVID have been reported since the start of the pandemic.

Deadline reported that the R.1 strain was first detected in Japan in January among three members of one family. The family members had no history of traveling abroad, Deadline said, citing an National Institutes of Health report.

The CDC has not classified R.1 as a variant of concern yet but noted it has “several mutations of importance” and “demonstrates evidence of increasing virus transmissibility.”

A version of this article first appeared on WebMD.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.

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.

A 26-year-old woman who reports a history of acyclovir-resistant herpes complains of a recurring, stinging rash around her mouth. Topical tacrolimus made it worse, she said. On exam, she has somewhat grouped pustules on her cutaneous lip. I mentioned her to colleagues, saying: “I’ve a patient with acyclovir-resistant herpes who isn’t improving on high-dose Valtrex.” They proffered a few alternative diagnoses and treatment recommendations. I tried several to no avail.

This case illustrates a common problem in medicine: Noise, the chance variability in judgments that should all be identical (it is after all only one condition). Nobel Prize–winning economist Daniel Kahneman, PhD, with two other authors, has written a brilliant book about this cognitive unreliability called “Noise: A Flaw in Human Judgment” (New York: Hachette Book Group, 2021).

Both bias and noise create trouble for us. Although biases get more attention, noise is both more prevalent and insidious. In a 2016 article, Dr. Kahneman and coauthors use a bathroom scale as an analogy to explain the difference. “We would say that the scale is biased if its readings are generally either too high or too low. A scale that consistently underestimates true weight by exactly 4 pounds is seriously biased but free of noise. A scale that gives two different readings when you step on it twice is noisy.” In the case presented, “measurements” by me and my colleagues were returning different “readings.” There is one true diagnosis and best treatment, yet because of noise, we waste time and resources by not getting it right the first time.

There is also evidence of bias in this case. For example, there’s probably some confirmation bias: The patient said she has a history of antiviral-resistant herpes; therefore, her rash might appear to be herpes. Also there might be salience bias: it’s easy to see how prominent pustules might be herpes simplex virus. Noise is an issue in many misdiagnoses, but trickier to see. In most instances, we don’t have the opportunity to get multiple assessments of the same case. When examined though, interrater reliability in medicine is often found to be shockingly low, an indication of how much noise there is in our clinical judgments. This leads to waste, frustration – and can even be dangerous when we’re trying to diagnose cancers such as melanoma, lung, or breast cancer.

Dr. Kahneman and colleagues have excellent recommendations on how to reduce noise, such as tips for good decision hygiene (e.g., using differential diagnoses) and using algorithms (e.g., calculating Apgar or LACE scores). I also liked their strategy of aggregating expert opinions. Fascinatingly, averaging multiple independent assessments is mathematically guaranteed to reduce noise. (God, I love economists). This is true of measurements and opinions: If you use 100 judgments for a case, you reduce noise by 90% (the noise is divided by the square root of the number of judgments averaged). So 20 colleagues’ opinions would reduce noise by almost 80%. However, those 20 opinions must be independent to avoid spurious agreement. (Again, math for the win.)

I showed photos of my patient to a few other dermatologists. They independently returned the same result: perioral dermatitis. This was the correct diagnosis and reminded me why grand rounds and tumor boards are such a great help. Multiple, independent assessments are more likely to get it right than just one opinion because we are canceling out the noise. But remember, grand rounds has to be old-school style – no looking at your coresident answers before giving yours!

Our patient cleared after restarting her topical tacrolimus and a bit of doxycycline. Credit the wisdom of the crowd. Reassuringly though, Dr. Kahneman also shows that expertise does matter in minimizing error. So that fellowship you did was still a great idea.

Dr. Benabio is director of Healthcare Transformation and chief of dermatology at Kaiser Permanente San Diego. The opinions expressed in this column are his own and do not represent those of Kaiser Permanente. Dr. Benabio is @Dermdoc on Twitter. He reports having no conflicts of interest. Write to him at [email protected].

A 26-year-old woman who reports a history of acyclovir-resistant herpes complains of a recurring, stinging rash around her mouth. Topical tacrolimus made it worse, she said. On exam, she has somewhat grouped pustules on her cutaneous lip. I mentioned her to colleagues, saying: “I’ve a patient with acyclovir-resistant herpes who isn’t improving on high-dose Valtrex.” They proffered a few alternative diagnoses and treatment recommendations. I tried several to no avail.

This case illustrates a common problem in medicine: Noise, the chance variability in judgments that should all be identical (it is after all only one condition). Nobel Prize–winning economist Daniel Kahneman, PhD, with two other authors, has written a brilliant book about this cognitive unreliability called “Noise: A Flaw in Human Judgment” (New York: Hachette Book Group, 2021).

Both bias and noise create trouble for us. Although biases get more attention, noise is both more prevalent and insidious. In a 2016 article, Dr. Kahneman and coauthors use a bathroom scale as an analogy to explain the difference. “We would say that the scale is biased if its readings are generally either too high or too low. A scale that consistently underestimates true weight by exactly 4 pounds is seriously biased but free of noise. A scale that gives two different readings when you step on it twice is noisy.” In the case presented, “measurements” by me and my colleagues were returning different “readings.” There is one true diagnosis and best treatment, yet because of noise, we waste time and resources by not getting it right the first time.

There is also evidence of bias in this case. For example, there’s probably some confirmation bias: The patient said she has a history of antiviral-resistant herpes; therefore, her rash might appear to be herpes. Also there might be salience bias: it’s easy to see how prominent pustules might be herpes simplex virus. Noise is an issue in many misdiagnoses, but trickier to see. In most instances, we don’t have the opportunity to get multiple assessments of the same case. When examined though, interrater reliability in medicine is often found to be shockingly low, an indication of how much noise there is in our clinical judgments. This leads to waste, frustration – and can even be dangerous when we’re trying to diagnose cancers such as melanoma, lung, or breast cancer.

Dr. Kahneman and colleagues have excellent recommendations on how to reduce noise, such as tips for good decision hygiene (e.g., using differential diagnoses) and using algorithms (e.g., calculating Apgar or LACE scores). I also liked their strategy of aggregating expert opinions. Fascinatingly, averaging multiple independent assessments is mathematically guaranteed to reduce noise. (God, I love economists). This is true of measurements and opinions: If you use 100 judgments for a case, you reduce noise by 90% (the noise is divided by the square root of the number of judgments averaged). So 20 colleagues’ opinions would reduce noise by almost 80%. However, those 20 opinions must be independent to avoid spurious agreement. (Again, math for the win.)

I showed photos of my patient to a few other dermatologists. They independently returned the same result: perioral dermatitis. This was the correct diagnosis and reminded me why grand rounds and tumor boards are such a great help. Multiple, independent assessments are more likely to get it right than just one opinion because we are canceling out the noise. But remember, grand rounds has to be old-school style – no looking at your coresident answers before giving yours!

Our patient cleared after restarting her topical tacrolimus and a bit of doxycycline. Credit the wisdom of the crowd. Reassuringly though, Dr. Kahneman also shows that expertise does matter in minimizing error. So that fellowship you did was still a great idea.

Dr. Benabio is director of Healthcare Transformation and chief of dermatology at Kaiser Permanente San Diego. The opinions expressed in this column are his own and do not represent those of Kaiser Permanente. Dr. Benabio is @Dermdoc on Twitter. He reports having no conflicts of interest. Write to him at [email protected].

A 26-year-old woman who reports a history of acyclovir-resistant herpes complains of a recurring, stinging rash around her mouth. Topical tacrolimus made it worse, she said. On exam, she has somewhat grouped pustules on her cutaneous lip. I mentioned her to colleagues, saying: “I’ve a patient with acyclovir-resistant herpes who isn’t improving on high-dose Valtrex.” They proffered a few alternative diagnoses and treatment recommendations. I tried several to no avail.

This case illustrates a common problem in medicine: Noise, the chance variability in judgments that should all be identical (it is after all only one condition). Nobel Prize–winning economist Daniel Kahneman, PhD, with two other authors, has written a brilliant book about this cognitive unreliability called “Noise: A Flaw in Human Judgment” (New York: Hachette Book Group, 2021).

Both bias and noise create trouble for us. Although biases get more attention, noise is both more prevalent and insidious. In a 2016 article, Dr. Kahneman and coauthors use a bathroom scale as an analogy to explain the difference. “We would say that the scale is biased if its readings are generally either too high or too low. A scale that consistently underestimates true weight by exactly 4 pounds is seriously biased but free of noise. A scale that gives two different readings when you step on it twice is noisy.” In the case presented, “measurements” by me and my colleagues were returning different “readings.” There is one true diagnosis and best treatment, yet because of noise, we waste time and resources by not getting it right the first time.

There is also evidence of bias in this case. For example, there’s probably some confirmation bias: The patient said she has a history of antiviral-resistant herpes; therefore, her rash might appear to be herpes. Also there might be salience bias: it’s easy to see how prominent pustules might be herpes simplex virus. Noise is an issue in many misdiagnoses, but trickier to see. In most instances, we don’t have the opportunity to get multiple assessments of the same case. When examined though, interrater reliability in medicine is often found to be shockingly low, an indication of how much noise there is in our clinical judgments. This leads to waste, frustration – and can even be dangerous when we’re trying to diagnose cancers such as melanoma, lung, or breast cancer.

Dr. Kahneman and colleagues have excellent recommendations on how to reduce noise, such as tips for good decision hygiene (e.g., using differential diagnoses) and using algorithms (e.g., calculating Apgar or LACE scores). I also liked their strategy of aggregating expert opinions. Fascinatingly, averaging multiple independent assessments is mathematically guaranteed to reduce noise. (God, I love economists). This is true of measurements and opinions: If you use 100 judgments for a case, you reduce noise by 90% (the noise is divided by the square root of the number of judgments averaged). So 20 colleagues’ opinions would reduce noise by almost 80%. However, those 20 opinions must be independent to avoid spurious agreement. (Again, math for the win.)

I showed photos of my patient to a few other dermatologists. They independently returned the same result: perioral dermatitis. This was the correct diagnosis and reminded me why grand rounds and tumor boards are such a great help. Multiple, independent assessments are more likely to get it right than just one opinion because we are canceling out the noise. But remember, grand rounds has to be old-school style – no looking at your coresident answers before giving yours!

Our patient cleared after restarting her topical tacrolimus and a bit of doxycycline. Credit the wisdom of the crowd. Reassuringly though, Dr. Kahneman also shows that expertise does matter in minimizing error. So that fellowship you did was still a great idea.

Dr. Benabio is director of Healthcare Transformation and chief of dermatology at Kaiser Permanente San Diego. The opinions expressed in this column are his own and do not represent those of Kaiser Permanente. Dr. Benabio is @Dermdoc on Twitter. He reports having no conflicts of interest. Write to him at [email protected].