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For patients with refractory acute respiratory distress syndrome (ARDS) caused by COVID-19 infections, extracorporeal membrane oxygenation (ECMO) may be the treatment of last resort.

But for reasons that aren’t clear, in the second wave of the COVID-19 pandemic at a major teaching hospital, the mortality rate of patients on ECMO for COVID-induced ARDS was significantly higher than it was during the first wave, despite changes in drug therapy and clinical management, reported Rohit Reddy, BS, a second-year medical student, and colleagues at Thomas Jefferson University Hospital in Philadelphia.

During the first wave, from April to September 2020, the survival rate of patients while on ECMO in their ICUs was 67%. In contrast, for patients treated during the second wave, from November 2020 to March 2021, the ECMO survival rate was 31% (P = .003).

The 30-day survival rates were also higher in the first wave compared with the second, at 54% versus 31%, but this difference was not statistically significant.

“More research is required to develop stricter inclusion/exclusion criteria and to improve pre-ECMO management in order to improve outcomes,” Mr. Reddy said in a narrated poster presented at the annual meeting of the American College of Chest Physicians, held virtually this year.
 

ARDS severity higher

ARDS is a major complication of COVID-19 infections, and there is evidence to suggest that COVID-associated ARDS is more severe than ARDS caused by other causes, the investigators noted.

“ECMO, which has been used as a rescue therapy in prior viral outbreaks, has been used to support certain patients with refractory ARDS due to COVID-19, but evidence for its efficacy is limited. Respiratory failure remained a highly concerning complication in the second wave of the COVID-19 pandemic, but it is unclear how the evolution of the disease and pharmacologic utility has affected the clinical utility of ECMO,” Mr. Reddy said.

To see whether changes in disease course or in treatment could explain changes in outcomes for patients with COVID-related ARDS, the investigators compared characteristics and outcomes for patients treated in the first versus second waves of the pandemic. Their study did not include data from patients infected with the Delta variant of the SARS-CoV-2 virus, which became the predominant viral strain later in 2021.

The study included data on 28 patients treated during the first wave, and 13 during the second. The sample included 28 men and 13 women with a mean age of 51 years.

All patients had venovenous ECMO, with cannulation in the femoral or internal jugular veins; some patients received ECMO via a single double-lumen cannula.

There were no significant differences between the two time periods in patient comorbidities prior to initiation of ECMO.

Patients in the second wave were significantly more likely to receive steroids (54% vs. 100%; P = .003) and remdesivir (39% vs. 85%; P = .007). Prone positioning before ECMO was also significantly more frequent in the second wave (11% vs. 85%; P < .001).

Patients in the second wave stayed on ECMO longer – median 20 days versus 14 days for first-wave patients – but as noted before, ECMO mortality rates were significantly higher during the second wave. During the first wave, 33% of patients died while on ECMO, compared with 69% in the second wave (P = .03). Respective 30-day mortality rates were 46% versus 69% (ns).

Rates of complications during ECMO were generally comparable between the groups, including acute renal failure (39% in the first wave vs 38% in the second), sepsis (32% vs. 23%), bacterial pneumonia (11% vs. 8%), and gastrointestinal bleeding (21% vs. 15%). However, significantly more patients in the second wave had cerebral vascular accidents (4% vs. 23%; P = .050).

Senior author Hitoshi Hirose, MD, PhD, professor of surgery at Thomas Jefferson University, said in an interview that the difference in outcomes was likely caused by changes in pre-ECMO therapy between the first and second waves.

“Our study showed the incidence of sepsis had a large impact on the patient outcomes,” he wrote. “We speculate that sepsis was attributed to use of immune modulation therapy. The prevention of the sepsis would be key to improve survival of ECMO for COVID 19.”

“It’s possible that the explanation for this is that patients in the second wave were sicker in a way that wasn’t adequately measured in the first wave,” CHEST 2021 program cochair Christopher Carroll, MD, FCCP, from Connecticut Children’s Medical Center in Hartford, said in an interview.

The differences may also have been attributable to changes in virulence, or to clinical decisions to put sicker patients on ECMO, he said.

Casey Cable, MD, MSc, a pulmonary disease and critical care specialist at Virginia Commonwealth Medical Center in Richmond, also speculated in an interview that second-wave patients may have been sicker.

“One interesting piece of this story is that we now know a lot more – we know about the use of steroids plus or minus remdesivir and proning, and patients received a large majority of those treatments but still got put on ECMO,” she said. “I wonder if there is a subset of really sick patients, and no matter what we treat with – steroids, proning – whatever we do they’re just not going to do well.”

Both Dr. Carroll and Dr. Cable emphasized the importance of ECMO as a rescue therapy for patients with severe, refractory ARDS associated with COVID-19 or other diseases.

Neither Dr. Carroll nor Dr. Cable were involved in the study.

No study funding was reported. Mr. Reddy, Dr. Hirose, Dr. Carroll, and Dr. Cable disclosed no relevant financial relationships.

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

For patients with refractory acute respiratory distress syndrome (ARDS) caused by COVID-19 infections, extracorporeal membrane oxygenation (ECMO) may be the treatment of last resort.

But for reasons that aren’t clear, in the second wave of the COVID-19 pandemic at a major teaching hospital, the mortality rate of patients on ECMO for COVID-induced ARDS was significantly higher than it was during the first wave, despite changes in drug therapy and clinical management, reported Rohit Reddy, BS, a second-year medical student, and colleagues at Thomas Jefferson University Hospital in Philadelphia.

During the first wave, from April to September 2020, the survival rate of patients while on ECMO in their ICUs was 67%. In contrast, for patients treated during the second wave, from November 2020 to March 2021, the ECMO survival rate was 31% (P = .003).

The 30-day survival rates were also higher in the first wave compared with the second, at 54% versus 31%, but this difference was not statistically significant.

“More research is required to develop stricter inclusion/exclusion criteria and to improve pre-ECMO management in order to improve outcomes,” Mr. Reddy said in a narrated poster presented at the annual meeting of the American College of Chest Physicians, held virtually this year.
 

ARDS severity higher

ARDS is a major complication of COVID-19 infections, and there is evidence to suggest that COVID-associated ARDS is more severe than ARDS caused by other causes, the investigators noted.

“ECMO, which has been used as a rescue therapy in prior viral outbreaks, has been used to support certain patients with refractory ARDS due to COVID-19, but evidence for its efficacy is limited. Respiratory failure remained a highly concerning complication in the second wave of the COVID-19 pandemic, but it is unclear how the evolution of the disease and pharmacologic utility has affected the clinical utility of ECMO,” Mr. Reddy said.

To see whether changes in disease course or in treatment could explain changes in outcomes for patients with COVID-related ARDS, the investigators compared characteristics and outcomes for patients treated in the first versus second waves of the pandemic. Their study did not include data from patients infected with the Delta variant of the SARS-CoV-2 virus, which became the predominant viral strain later in 2021.

The study included data on 28 patients treated during the first wave, and 13 during the second. The sample included 28 men and 13 women with a mean age of 51 years.

All patients had venovenous ECMO, with cannulation in the femoral or internal jugular veins; some patients received ECMO via a single double-lumen cannula.

There were no significant differences between the two time periods in patient comorbidities prior to initiation of ECMO.

Patients in the second wave were significantly more likely to receive steroids (54% vs. 100%; P = .003) and remdesivir (39% vs. 85%; P = .007). Prone positioning before ECMO was also significantly more frequent in the second wave (11% vs. 85%; P < .001).

Patients in the second wave stayed on ECMO longer – median 20 days versus 14 days for first-wave patients – but as noted before, ECMO mortality rates were significantly higher during the second wave. During the first wave, 33% of patients died while on ECMO, compared with 69% in the second wave (P = .03). Respective 30-day mortality rates were 46% versus 69% (ns).

Rates of complications during ECMO were generally comparable between the groups, including acute renal failure (39% in the first wave vs 38% in the second), sepsis (32% vs. 23%), bacterial pneumonia (11% vs. 8%), and gastrointestinal bleeding (21% vs. 15%). However, significantly more patients in the second wave had cerebral vascular accidents (4% vs. 23%; P = .050).

Senior author Hitoshi Hirose, MD, PhD, professor of surgery at Thomas Jefferson University, said in an interview that the difference in outcomes was likely caused by changes in pre-ECMO therapy between the first and second waves.

“Our study showed the incidence of sepsis had a large impact on the patient outcomes,” he wrote. “We speculate that sepsis was attributed to use of immune modulation therapy. The prevention of the sepsis would be key to improve survival of ECMO for COVID 19.”

“It’s possible that the explanation for this is that patients in the second wave were sicker in a way that wasn’t adequately measured in the first wave,” CHEST 2021 program cochair Christopher Carroll, MD, FCCP, from Connecticut Children’s Medical Center in Hartford, said in an interview.

The differences may also have been attributable to changes in virulence, or to clinical decisions to put sicker patients on ECMO, he said.

Casey Cable, MD, MSc, a pulmonary disease and critical care specialist at Virginia Commonwealth Medical Center in Richmond, also speculated in an interview that second-wave patients may have been sicker.

“One interesting piece of this story is that we now know a lot more – we know about the use of steroids plus or minus remdesivir and proning, and patients received a large majority of those treatments but still got put on ECMO,” she said. “I wonder if there is a subset of really sick patients, and no matter what we treat with – steroids, proning – whatever we do they’re just not going to do well.”

Both Dr. Carroll and Dr. Cable emphasized the importance of ECMO as a rescue therapy for patients with severe, refractory ARDS associated with COVID-19 or other diseases.

Neither Dr. Carroll nor Dr. Cable were involved in the study.

No study funding was reported. Mr. Reddy, Dr. Hirose, Dr. Carroll, and Dr. Cable disclosed no relevant financial relationships.

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

For patients with refractory acute respiratory distress syndrome (ARDS) caused by COVID-19 infections, extracorporeal membrane oxygenation (ECMO) may be the treatment of last resort.

But for reasons that aren’t clear, in the second wave of the COVID-19 pandemic at a major teaching hospital, the mortality rate of patients on ECMO for COVID-induced ARDS was significantly higher than it was during the first wave, despite changes in drug therapy and clinical management, reported Rohit Reddy, BS, a second-year medical student, and colleagues at Thomas Jefferson University Hospital in Philadelphia.

During the first wave, from April to September 2020, the survival rate of patients while on ECMO in their ICUs was 67%. In contrast, for patients treated during the second wave, from November 2020 to March 2021, the ECMO survival rate was 31% (P = .003).

The 30-day survival rates were also higher in the first wave compared with the second, at 54% versus 31%, but this difference was not statistically significant.

“More research is required to develop stricter inclusion/exclusion criteria and to improve pre-ECMO management in order to improve outcomes,” Mr. Reddy said in a narrated poster presented at the annual meeting of the American College of Chest Physicians, held virtually this year.
 

ARDS severity higher

ARDS is a major complication of COVID-19 infections, and there is evidence to suggest that COVID-associated ARDS is more severe than ARDS caused by other causes, the investigators noted.

“ECMO, which has been used as a rescue therapy in prior viral outbreaks, has been used to support certain patients with refractory ARDS due to COVID-19, but evidence for its efficacy is limited. Respiratory failure remained a highly concerning complication in the second wave of the COVID-19 pandemic, but it is unclear how the evolution of the disease and pharmacologic utility has affected the clinical utility of ECMO,” Mr. Reddy said.

To see whether changes in disease course or in treatment could explain changes in outcomes for patients with COVID-related ARDS, the investigators compared characteristics and outcomes for patients treated in the first versus second waves of the pandemic. Their study did not include data from patients infected with the Delta variant of the SARS-CoV-2 virus, which became the predominant viral strain later in 2021.

The study included data on 28 patients treated during the first wave, and 13 during the second. The sample included 28 men and 13 women with a mean age of 51 years.

All patients had venovenous ECMO, with cannulation in the femoral or internal jugular veins; some patients received ECMO via a single double-lumen cannula.

There were no significant differences between the two time periods in patient comorbidities prior to initiation of ECMO.

Patients in the second wave were significantly more likely to receive steroids (54% vs. 100%; P = .003) and remdesivir (39% vs. 85%; P = .007). Prone positioning before ECMO was also significantly more frequent in the second wave (11% vs. 85%; P < .001).

Patients in the second wave stayed on ECMO longer – median 20 days versus 14 days for first-wave patients – but as noted before, ECMO mortality rates were significantly higher during the second wave. During the first wave, 33% of patients died while on ECMO, compared with 69% in the second wave (P = .03). Respective 30-day mortality rates were 46% versus 69% (ns).

Rates of complications during ECMO were generally comparable between the groups, including acute renal failure (39% in the first wave vs 38% in the second), sepsis (32% vs. 23%), bacterial pneumonia (11% vs. 8%), and gastrointestinal bleeding (21% vs. 15%). However, significantly more patients in the second wave had cerebral vascular accidents (4% vs. 23%; P = .050).

Senior author Hitoshi Hirose, MD, PhD, professor of surgery at Thomas Jefferson University, said in an interview that the difference in outcomes was likely caused by changes in pre-ECMO therapy between the first and second waves.

“Our study showed the incidence of sepsis had a large impact on the patient outcomes,” he wrote. “We speculate that sepsis was attributed to use of immune modulation therapy. The prevention of the sepsis would be key to improve survival of ECMO for COVID 19.”

“It’s possible that the explanation for this is that patients in the second wave were sicker in a way that wasn’t adequately measured in the first wave,” CHEST 2021 program cochair Christopher Carroll, MD, FCCP, from Connecticut Children’s Medical Center in Hartford, said in an interview.

The differences may also have been attributable to changes in virulence, or to clinical decisions to put sicker patients on ECMO, he said.

Casey Cable, MD, MSc, a pulmonary disease and critical care specialist at Virginia Commonwealth Medical Center in Richmond, also speculated in an interview that second-wave patients may have been sicker.

“One interesting piece of this story is that we now know a lot more – we know about the use of steroids plus or minus remdesivir and proning, and patients received a large majority of those treatments but still got put on ECMO,” she said. “I wonder if there is a subset of really sick patients, and no matter what we treat with – steroids, proning – whatever we do they’re just not going to do well.”

Both Dr. Carroll and Dr. Cable emphasized the importance of ECMO as a rescue therapy for patients with severe, refractory ARDS associated with COVID-19 or other diseases.

Neither Dr. Carroll nor Dr. Cable were involved in the study.

No study funding was reported. Mr. Reddy, Dr. Hirose, Dr. Carroll, and Dr. Cable disclosed no relevant financial relationships.

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

States can preorder COVID-19 vaccine doses for younger children this week as they begin to set up vaccination campaigns for ages 5-11.

Vaccine advisory groups for the FDA and CDC are scheduled to discuss and approve the Pfizer shot for kids in the next three weeks. To help states and cities prepare for the rollout, the CDC issued guidance on how to set up expanded vaccination programs.

Immunization program managers can begin ordering doses on Wednesday, according to the guidance. The vials won’t be delivered until the FDA and CDC authorize the shot, but registering now will help federal officials ship doses quickly once they’re available.

Pharmacies in every state will be able to give COVID-19 shots to children, but they can only use doses that are prepared specifically for children. Ages 5-11 will need a 10-microgram dose, which is one-third of the dose administered to ages 12 and older. The guidance warns that doctors should not try to split up or fraction the adult doses.

The CDC guidance also recommends that pediatricians and family practice doctors should serve as primary places to give shots to kids. The document mentions other options, such as vaccination clinics at schools, but doesn’t endorse them as the first choice for vaccinating kids.

The CDC hasn’t yet addressed questions around whether kids should be required to get vaccinated to attend school. The decision will likely be left to state and city officials.

Federal health officials aren’t yet sure how many parents and guardians will seek shots for their younger kids right away, the AP reported. Demand may be high at first for some families, but it may not be as high as when shots first became available for adults, Marcus Plescia, MD, chief medical officer of the Association of State and Territorial Health Officials, told The Associated Press.

“We’re going to have potentially a very busy, and perhaps modestly chaotic time,” he said.

When vaccines were first authorized for adults, hospitals and pharmacies received priority for ordering shots. Some doctors felt left out. This time, however, the CDC has said that pediatricians will receive higher priority and be able to receive shipments quickly.

As the vaccine rollout begins, health officials should consider logistical concerns to address racial and economic disparities for younger kids, Richard Besser, MD, president and CEO of the Robert Wood Johnson Foundation and a former acting director of the CDC, told the AP.

If parents or guardians can’t leave work to take their kids to a pharmacy or doctor’s office, for instance, their kids may not receive a shot quickly – or at all.

“It’s really important that we recognize the barriers to vaccinations,” he said.

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

States can preorder COVID-19 vaccine doses for younger children this week as they begin to set up vaccination campaigns for ages 5-11.

Vaccine advisory groups for the FDA and CDC are scheduled to discuss and approve the Pfizer shot for kids in the next three weeks. To help states and cities prepare for the rollout, the CDC issued guidance on how to set up expanded vaccination programs.

Immunization program managers can begin ordering doses on Wednesday, according to the guidance. The vials won’t be delivered until the FDA and CDC authorize the shot, but registering now will help federal officials ship doses quickly once they’re available.

Pharmacies in every state will be able to give COVID-19 shots to children, but they can only use doses that are prepared specifically for children. Ages 5-11 will need a 10-microgram dose, which is one-third of the dose administered to ages 12 and older. The guidance warns that doctors should not try to split up or fraction the adult doses.

The CDC guidance also recommends that pediatricians and family practice doctors should serve as primary places to give shots to kids. The document mentions other options, such as vaccination clinics at schools, but doesn’t endorse them as the first choice for vaccinating kids.

The CDC hasn’t yet addressed questions around whether kids should be required to get vaccinated to attend school. The decision will likely be left to state and city officials.

Federal health officials aren’t yet sure how many parents and guardians will seek shots for their younger kids right away, the AP reported. Demand may be high at first for some families, but it may not be as high as when shots first became available for adults, Marcus Plescia, MD, chief medical officer of the Association of State and Territorial Health Officials, told The Associated Press.

“We’re going to have potentially a very busy, and perhaps modestly chaotic time,” he said.

When vaccines were first authorized for adults, hospitals and pharmacies received priority for ordering shots. Some doctors felt left out. This time, however, the CDC has said that pediatricians will receive higher priority and be able to receive shipments quickly.

As the vaccine rollout begins, health officials should consider logistical concerns to address racial and economic disparities for younger kids, Richard Besser, MD, president and CEO of the Robert Wood Johnson Foundation and a former acting director of the CDC, told the AP.

If parents or guardians can’t leave work to take their kids to a pharmacy or doctor’s office, for instance, their kids may not receive a shot quickly – or at all.

“It’s really important that we recognize the barriers to vaccinations,” he said.

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

States can preorder COVID-19 vaccine doses for younger children this week as they begin to set up vaccination campaigns for ages 5-11.

Vaccine advisory groups for the FDA and CDC are scheduled to discuss and approve the Pfizer shot for kids in the next three weeks. To help states and cities prepare for the rollout, the CDC issued guidance on how to set up expanded vaccination programs.

Immunization program managers can begin ordering doses on Wednesday, according to the guidance. The vials won’t be delivered until the FDA and CDC authorize the shot, but registering now will help federal officials ship doses quickly once they’re available.

Pharmacies in every state will be able to give COVID-19 shots to children, but they can only use doses that are prepared specifically for children. Ages 5-11 will need a 10-microgram dose, which is one-third of the dose administered to ages 12 and older. The guidance warns that doctors should not try to split up or fraction the adult doses.

The CDC guidance also recommends that pediatricians and family practice doctors should serve as primary places to give shots to kids. The document mentions other options, such as vaccination clinics at schools, but doesn’t endorse them as the first choice for vaccinating kids.

The CDC hasn’t yet addressed questions around whether kids should be required to get vaccinated to attend school. The decision will likely be left to state and city officials.

Federal health officials aren’t yet sure how many parents and guardians will seek shots for their younger kids right away, the AP reported. Demand may be high at first for some families, but it may not be as high as when shots first became available for adults, Marcus Plescia, MD, chief medical officer of the Association of State and Territorial Health Officials, told The Associated Press.

“We’re going to have potentially a very busy, and perhaps modestly chaotic time,” he said.

When vaccines were first authorized for adults, hospitals and pharmacies received priority for ordering shots. Some doctors felt left out. This time, however, the CDC has said that pediatricians will receive higher priority and be able to receive shipments quickly.

As the vaccine rollout begins, health officials should consider logistical concerns to address racial and economic disparities for younger kids, Richard Besser, MD, president and CEO of the Robert Wood Johnson Foundation and a former acting director of the CDC, told the AP.

If parents or guardians can’t leave work to take their kids to a pharmacy or doctor’s office, for instance, their kids may not receive a shot quickly – or at all.

“It’s really important that we recognize the barriers to vaccinations,” he said.

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

In June, Gerald Bock, MD, a dermatologist in central California, instituted a new office policy: He would not be seeing any more patients who remain unvaccinated against COVID-19 in his practice.

peterschreiber_media/iStock/Getty Images

“[It is] the height of self-centered and irresponsible behavior,” he told me. “People who come in unvaccinated, when vaccination is widely available, are stating that their personal preferences are more important than their health, and are more important than any risk that they may expose their friends and family to, and also to any risk they might present to my staff and me. We have gone to considerable effort and expense to diminish any risk that visiting our office might entail. I see no reason why we should tolerate this.”

Other doctors appear to be following in his footsteps. There is no question that physicians have the right to choose their patients, just as patients are free to choose their doctors, but is it ethical to treat unvaccinated patients differently than their vaccinated counterparts? That is a complicated question without a clear answer. In a statement on whether physicians can decline unvaccinated patients, the American Medical Association continues to maintain that “in general” a physician may not “ethically turn a patient away based solely on the individual’s infectious disease status,” but does concede that “the decision to accept or decline a patient must balance the urgency of the individual patient’s need; the risk the patient may pose to other patients in the physician’s practice; and the need for the physician and staff, to be available to provide care in the future.”

Medical ethics experts have offered varying opinions. Daniel Wikler, PhD, professor of ethics and population health at the Harvard School of Public Health, Boston, wrote in an op-ed in the Washington Post that “ignorance or other personal failing” should not be factors in the evaluation of patients for health care. He argues that “doctors and hospitals are not in the blame and punishment business. Nor should they be. That doctors treat sinners and responsible citizens alike is a noble tradition.”

Timothy Hoff, professor of management, healthcare systems, and health policy at Northeastern University, Boston, maintains that, in nonemergency situations, physicians are legally able to refuse patients for a variety of reasons, provided they are not doing so because of some aspect of the patient’s race, gender, sexuality, or religion. However, in the same Northeastern University news release,Robert Baginski, MD, the director of interdisciplinary affairs for the department of medical sciences at Northeastern, cautions that it is vital for health authorities to continue urging the public to get vaccinated, but not at the expense of care.

Arthur L. Caplan, PhD, the head of the division of medical ethics at New York University, said in a Medscape commentary, that the decision to refuse to see patients who can vaccinate, but choose not to, is justifiable. “If you’re trying to protect yourself, your staff, or other patients, I think you do have the right to not take on somebody who won’t vaccinate,” he writes. “This is somewhat similar to when pediatricians do not accept a family if they won’t give their kids the state-required shots to go to school. That’s been happening for many years now.

“I also think it is morally justified if they won’t take your advice,” he continues. “If they won’t follow what you think is the best healthcare for them [such as getting vaccinated], there’s not much point in building that relationship.”

The situation is different in ED and hospital settings, however. “It’s a little harder to use unvaccinated status when someone really is at death’s door,” Dr. Caplan pointed out. “When someone comes in very sick, or whatever the reason, I think we have to take care of them ethically, and legally we’re bound to get them stable in the emergency room. I do think different rules apply there.”

In the end, every private practitioner will have to make his or her own decision on this question. Dr. Bock feels he made the right one. “Since instituting the policy, we have written 55 refund checks for people who had paid for a series of cosmetic procedures. We have no idea how many people were deterred from making appointments. We’ve had several negative online reviews and one woman who wrote a letter to the Medical Board of California complaining that we were discriminating against her,” he said. He added, however, that “we’ve also had several patients who commented favorably about the policy. I have no regrets about instituting the policy, and would do it again.”

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a longtime monthly columnist for Dermatology News. Write to him at [email protected].

In June, Gerald Bock, MD, a dermatologist in central California, instituted a new office policy: He would not be seeing any more patients who remain unvaccinated against COVID-19 in his practice.

peterschreiber_media/iStock/Getty Images

“[It is] the height of self-centered and irresponsible behavior,” he told me. “People who come in unvaccinated, when vaccination is widely available, are stating that their personal preferences are more important than their health, and are more important than any risk that they may expose their friends and family to, and also to any risk they might present to my staff and me. We have gone to considerable effort and expense to diminish any risk that visiting our office might entail. I see no reason why we should tolerate this.”

Other doctors appear to be following in his footsteps. There is no question that physicians have the right to choose their patients, just as patients are free to choose their doctors, but is it ethical to treat unvaccinated patients differently than their vaccinated counterparts? That is a complicated question without a clear answer. In a statement on whether physicians can decline unvaccinated patients, the American Medical Association continues to maintain that “in general” a physician may not “ethically turn a patient away based solely on the individual’s infectious disease status,” but does concede that “the decision to accept or decline a patient must balance the urgency of the individual patient’s need; the risk the patient may pose to other patients in the physician’s practice; and the need for the physician and staff, to be available to provide care in the future.”

Medical ethics experts have offered varying opinions. Daniel Wikler, PhD, professor of ethics and population health at the Harvard School of Public Health, Boston, wrote in an op-ed in the Washington Post that “ignorance or other personal failing” should not be factors in the evaluation of patients for health care. He argues that “doctors and hospitals are not in the blame and punishment business. Nor should they be. That doctors treat sinners and responsible citizens alike is a noble tradition.”

Timothy Hoff, professor of management, healthcare systems, and health policy at Northeastern University, Boston, maintains that, in nonemergency situations, physicians are legally able to refuse patients for a variety of reasons, provided they are not doing so because of some aspect of the patient’s race, gender, sexuality, or religion. However, in the same Northeastern University news release,Robert Baginski, MD, the director of interdisciplinary affairs for the department of medical sciences at Northeastern, cautions that it is vital for health authorities to continue urging the public to get vaccinated, but not at the expense of care.

Arthur L. Caplan, PhD, the head of the division of medical ethics at New York University, said in a Medscape commentary, that the decision to refuse to see patients who can vaccinate, but choose not to, is justifiable. “If you’re trying to protect yourself, your staff, or other patients, I think you do have the right to not take on somebody who won’t vaccinate,” he writes. “This is somewhat similar to when pediatricians do not accept a family if they won’t give their kids the state-required shots to go to school. That’s been happening for many years now.

“I also think it is morally justified if they won’t take your advice,” he continues. “If they won’t follow what you think is the best healthcare for them [such as getting vaccinated], there’s not much point in building that relationship.”

The situation is different in ED and hospital settings, however. “It’s a little harder to use unvaccinated status when someone really is at death’s door,” Dr. Caplan pointed out. “When someone comes in very sick, or whatever the reason, I think we have to take care of them ethically, and legally we’re bound to get them stable in the emergency room. I do think different rules apply there.”

In the end, every private practitioner will have to make his or her own decision on this question. Dr. Bock feels he made the right one. “Since instituting the policy, we have written 55 refund checks for people who had paid for a series of cosmetic procedures. We have no idea how many people were deterred from making appointments. We’ve had several negative online reviews and one woman who wrote a letter to the Medical Board of California complaining that we were discriminating against her,” he said. He added, however, that “we’ve also had several patients who commented favorably about the policy. I have no regrets about instituting the policy, and would do it again.”

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a longtime monthly columnist for Dermatology News. Write to him at [email protected].

In June, Gerald Bock, MD, a dermatologist in central California, instituted a new office policy: He would not be seeing any more patients who remain unvaccinated against COVID-19 in his practice.

peterschreiber_media/iStock/Getty Images

“[It is] the height of self-centered and irresponsible behavior,” he told me. “People who come in unvaccinated, when vaccination is widely available, are stating that their personal preferences are more important than their health, and are more important than any risk that they may expose their friends and family to, and also to any risk they might present to my staff and me. We have gone to considerable effort and expense to diminish any risk that visiting our office might entail. I see no reason why we should tolerate this.”

Other doctors appear to be following in his footsteps. There is no question that physicians have the right to choose their patients, just as patients are free to choose their doctors, but is it ethical to treat unvaccinated patients differently than their vaccinated counterparts? That is a complicated question without a clear answer. In a statement on whether physicians can decline unvaccinated patients, the American Medical Association continues to maintain that “in general” a physician may not “ethically turn a patient away based solely on the individual’s infectious disease status,” but does concede that “the decision to accept or decline a patient must balance the urgency of the individual patient’s need; the risk the patient may pose to other patients in the physician’s practice; and the need for the physician and staff, to be available to provide care in the future.”

Medical ethics experts have offered varying opinions. Daniel Wikler, PhD, professor of ethics and population health at the Harvard School of Public Health, Boston, wrote in an op-ed in the Washington Post that “ignorance or other personal failing” should not be factors in the evaluation of patients for health care. He argues that “doctors and hospitals are not in the blame and punishment business. Nor should they be. That doctors treat sinners and responsible citizens alike is a noble tradition.”

Timothy Hoff, professor of management, healthcare systems, and health policy at Northeastern University, Boston, maintains that, in nonemergency situations, physicians are legally able to refuse patients for a variety of reasons, provided they are not doing so because of some aspect of the patient’s race, gender, sexuality, or religion. However, in the same Northeastern University news release,Robert Baginski, MD, the director of interdisciplinary affairs for the department of medical sciences at Northeastern, cautions that it is vital for health authorities to continue urging the public to get vaccinated, but not at the expense of care.

Arthur L. Caplan, PhD, the head of the division of medical ethics at New York University, said in a Medscape commentary, that the decision to refuse to see patients who can vaccinate, but choose not to, is justifiable. “If you’re trying to protect yourself, your staff, or other patients, I think you do have the right to not take on somebody who won’t vaccinate,” he writes. “This is somewhat similar to when pediatricians do not accept a family if they won’t give their kids the state-required shots to go to school. That’s been happening for many years now.

“I also think it is morally justified if they won’t take your advice,” he continues. “If they won’t follow what you think is the best healthcare for them [such as getting vaccinated], there’s not much point in building that relationship.”

The situation is different in ED and hospital settings, however. “It’s a little harder to use unvaccinated status when someone really is at death’s door,” Dr. Caplan pointed out. “When someone comes in very sick, or whatever the reason, I think we have to take care of them ethically, and legally we’re bound to get them stable in the emergency room. I do think different rules apply there.”

In the end, every private practitioner will have to make his or her own decision on this question. Dr. Bock feels he made the right one. “Since instituting the policy, we have written 55 refund checks for people who had paid for a series of cosmetic procedures. We have no idea how many people were deterred from making appointments. We’ve had several negative online reviews and one woman who wrote a letter to the Medical Board of California complaining that we were discriminating against her,” he said. He added, however, that “we’ve also had several patients who commented favorably about the policy. I have no regrets about instituting the policy, and would do it again.”

Dr. Eastern practices dermatology and dermatologic surgery in Belleville, N.J. He is the author of numerous articles and textbook chapters, and is a longtime monthly columnist for Dermatology News. Write to him at [email protected].

Patients who are being treated with Janus kinase (JAK) inhibitors overall show a high immune response rate to COVID-19 vaccination, one that matches the rates seen in patients on other immunosuppressants, a new study has found.

The patients taking a JAK inhibitor who are most at risk of a diminished response may be those on upadacitinib (Rinvoq) and anyone 65 years or older, wrote Raphaèle Seror, MD, PhD, of Paris-Saclay (France) University and coauthors. The study was published in The Lancet Rheumatology.

To gauge the effectiveness of COVID-19 vaccines in this subset of immunosuppressed patients, the researchers analyzed 113 participants in the MAJIK-SFR Registry, a multicenter study of French patients with rheumatoid or psoriatic arthritis. The participants were treated at 13 centers throughout France; their mean age was 61.8 years (standard deviation, 12.5), and 72% were female. A total of 56 were taking baricitinib (Olumiant), 30 were taking tofacitinib (Xeljanz), and 27 were taking upadacitinib.

Serologic assessment was performed an average of 8.7 weeks (SD, 5.2) after the last dose of vaccine. The overall response rate – defined as the proportion of patients with detectable anti-spike antibodies per manufacturer’s cutoff values – was 88% (100 of 113). The nonresponse rate was higher with upadacitinib (7 of 27 patients, 26%) than with baricitinib (5 of 56, 9%) or tofacitinib (1 of 30, 3%). The only nonresponders who were not age 65 or older were four of the seven who received upadacitinib. The interval between the last vaccine dose and serologic assessment was somewhat longer in nonresponders (11.3 weeks) than in responders (8.3 weeks).

Earlier this year, the American College of Rheumatology recommended withholding JAK inhibitors for 1 week after each vaccine dose because of “concern related to the effects of this medication class on interferon signaling that may result in a diminished vaccine response Only two patients in the study had treatment with JAK inhibitors stopped before or after vaccination.

Questions about antibody levels remain difficult to answer

“This study does further confirm a big point,” said Alfred Kim, MD, PhD, of Washington University, St. Louis, in an interview. “Most people on any sort of immunosuppression, with rare exceptions, can mount responses to COVID-19 vaccination.”

“What level of response is going to be sufficient, of course, is not clear,” he added. “Even though most people generate responses, at the population level those responses seem lower than those in nonimmunosuppressed people. Particularly for those on upadacitinib, which is lower than patients on the other JAK inhibitors. Is that problematic? We don’t know yet.”

Dr. Kim, who was part of a separate, earlier study that assessed vaccine response in patients with chronic inflammatory disease who were being treated with immunosuppressive medications, noted that many of the questions patients are asking about their antibody levels cannot yet be answered.

“It’s kind of the Wild West of serologic testing out there right now,” he said. “Even though we’re recommending that people still don’t check their antibody levels because their results are largely inactionable, everyone is still getting them anyway. But each of these tests are slightly different, and the results and the interpretation are further clouded because of those slight performance differences between each platform.”

Dr. Kim highlighted the number of different tests as one of this study’s notable limitations: 11 different assays were used to determine patients’ immune responses. “The authors made the argument that these tests are FDA approved, and that’s true, but that doesn’t necessarily mean much. Approval does translate to technical reliability but not to comparisons between the tests.”

As for next steps, both the authors and Dr. Kim recognized the need for a prospective trial. “To do a vaccine effectiveness–type study and show clinical protection against either infection or hospitalization – those are going to take a while, simply because of the nature of how many people you need for each of these studies,” he said. “Time will tell whether or not the data that are being presented here will translate literally into protective outcomes downstream.”

The MAJIK Registry is supported by the French Rheumatology Society. The authors acknowledged numerous potential conflicts of interest, including receiving consulting fees, research support, and honoraria from various pharmaceutical companies.

Patients who are being treated with Janus kinase (JAK) inhibitors overall show a high immune response rate to COVID-19 vaccination, one that matches the rates seen in patients on other immunosuppressants, a new study has found.

The patients taking a JAK inhibitor who are most at risk of a diminished response may be those on upadacitinib (Rinvoq) and anyone 65 years or older, wrote Raphaèle Seror, MD, PhD, of Paris-Saclay (France) University and coauthors. The study was published in The Lancet Rheumatology.

To gauge the effectiveness of COVID-19 vaccines in this subset of immunosuppressed patients, the researchers analyzed 113 participants in the MAJIK-SFR Registry, a multicenter study of French patients with rheumatoid or psoriatic arthritis. The participants were treated at 13 centers throughout France; their mean age was 61.8 years (standard deviation, 12.5), and 72% were female. A total of 56 were taking baricitinib (Olumiant), 30 were taking tofacitinib (Xeljanz), and 27 were taking upadacitinib.

Serologic assessment was performed an average of 8.7 weeks (SD, 5.2) after the last dose of vaccine. The overall response rate – defined as the proportion of patients with detectable anti-spike antibodies per manufacturer’s cutoff values – was 88% (100 of 113). The nonresponse rate was higher with upadacitinib (7 of 27 patients, 26%) than with baricitinib (5 of 56, 9%) or tofacitinib (1 of 30, 3%). The only nonresponders who were not age 65 or older were four of the seven who received upadacitinib. The interval between the last vaccine dose and serologic assessment was somewhat longer in nonresponders (11.3 weeks) than in responders (8.3 weeks).

Earlier this year, the American College of Rheumatology recommended withholding JAK inhibitors for 1 week after each vaccine dose because of “concern related to the effects of this medication class on interferon signaling that may result in a diminished vaccine response Only two patients in the study had treatment with JAK inhibitors stopped before or after vaccination.

Questions about antibody levels remain difficult to answer

“This study does further confirm a big point,” said Alfred Kim, MD, PhD, of Washington University, St. Louis, in an interview. “Most people on any sort of immunosuppression, with rare exceptions, can mount responses to COVID-19 vaccination.”

“What level of response is going to be sufficient, of course, is not clear,” he added. “Even though most people generate responses, at the population level those responses seem lower than those in nonimmunosuppressed people. Particularly for those on upadacitinib, which is lower than patients on the other JAK inhibitors. Is that problematic? We don’t know yet.”

Dr. Kim, who was part of a separate, earlier study that assessed vaccine response in patients with chronic inflammatory disease who were being treated with immunosuppressive medications, noted that many of the questions patients are asking about their antibody levels cannot yet be answered.

“It’s kind of the Wild West of serologic testing out there right now,” he said. “Even though we’re recommending that people still don’t check their antibody levels because their results are largely inactionable, everyone is still getting them anyway. But each of these tests are slightly different, and the results and the interpretation are further clouded because of those slight performance differences between each platform.”

Dr. Kim highlighted the number of different tests as one of this study’s notable limitations: 11 different assays were used to determine patients’ immune responses. “The authors made the argument that these tests are FDA approved, and that’s true, but that doesn’t necessarily mean much. Approval does translate to technical reliability but not to comparisons between the tests.”

As for next steps, both the authors and Dr. Kim recognized the need for a prospective trial. “To do a vaccine effectiveness–type study and show clinical protection against either infection or hospitalization – those are going to take a while, simply because of the nature of how many people you need for each of these studies,” he said. “Time will tell whether or not the data that are being presented here will translate literally into protective outcomes downstream.”

The MAJIK Registry is supported by the French Rheumatology Society. The authors acknowledged numerous potential conflicts of interest, including receiving consulting fees, research support, and honoraria from various pharmaceutical companies.

Patients who are being treated with Janus kinase (JAK) inhibitors overall show a high immune response rate to COVID-19 vaccination, one that matches the rates seen in patients on other immunosuppressants, a new study has found.

The patients taking a JAK inhibitor who are most at risk of a diminished response may be those on upadacitinib (Rinvoq) and anyone 65 years or older, wrote Raphaèle Seror, MD, PhD, of Paris-Saclay (France) University and coauthors. The study was published in The Lancet Rheumatology.

To gauge the effectiveness of COVID-19 vaccines in this subset of immunosuppressed patients, the researchers analyzed 113 participants in the MAJIK-SFR Registry, a multicenter study of French patients with rheumatoid or psoriatic arthritis. The participants were treated at 13 centers throughout France; their mean age was 61.8 years (standard deviation, 12.5), and 72% were female. A total of 56 were taking baricitinib (Olumiant), 30 were taking tofacitinib (Xeljanz), and 27 were taking upadacitinib.

Serologic assessment was performed an average of 8.7 weeks (SD, 5.2) after the last dose of vaccine. The overall response rate – defined as the proportion of patients with detectable anti-spike antibodies per manufacturer’s cutoff values – was 88% (100 of 113). The nonresponse rate was higher with upadacitinib (7 of 27 patients, 26%) than with baricitinib (5 of 56, 9%) or tofacitinib (1 of 30, 3%). The only nonresponders who were not age 65 or older were four of the seven who received upadacitinib. The interval between the last vaccine dose and serologic assessment was somewhat longer in nonresponders (11.3 weeks) than in responders (8.3 weeks).

Earlier this year, the American College of Rheumatology recommended withholding JAK inhibitors for 1 week after each vaccine dose because of “concern related to the effects of this medication class on interferon signaling that may result in a diminished vaccine response Only two patients in the study had treatment with JAK inhibitors stopped before or after vaccination.

Questions about antibody levels remain difficult to answer

“This study does further confirm a big point,” said Alfred Kim, MD, PhD, of Washington University, St. Louis, in an interview. “Most people on any sort of immunosuppression, with rare exceptions, can mount responses to COVID-19 vaccination.”

“What level of response is going to be sufficient, of course, is not clear,” he added. “Even though most people generate responses, at the population level those responses seem lower than those in nonimmunosuppressed people. Particularly for those on upadacitinib, which is lower than patients on the other JAK inhibitors. Is that problematic? We don’t know yet.”

Dr. Kim, who was part of a separate, earlier study that assessed vaccine response in patients with chronic inflammatory disease who were being treated with immunosuppressive medications, noted that many of the questions patients are asking about their antibody levels cannot yet be answered.

“It’s kind of the Wild West of serologic testing out there right now,” he said. “Even though we’re recommending that people still don’t check their antibody levels because their results are largely inactionable, everyone is still getting them anyway. But each of these tests are slightly different, and the results and the interpretation are further clouded because of those slight performance differences between each platform.”

Dr. Kim highlighted the number of different tests as one of this study’s notable limitations: 11 different assays were used to determine patients’ immune responses. “The authors made the argument that these tests are FDA approved, and that’s true, but that doesn’t necessarily mean much. Approval does translate to technical reliability but not to comparisons between the tests.”

As for next steps, both the authors and Dr. Kim recognized the need for a prospective trial. “To do a vaccine effectiveness–type study and show clinical protection against either infection or hospitalization – those are going to take a while, simply because of the nature of how many people you need for each of these studies,” he said. “Time will tell whether or not the data that are being presented here will translate literally into protective outcomes downstream.”

The MAJIK Registry is supported by the French Rheumatology Society. The authors acknowledged numerous potential conflicts of interest, including receiving consulting fees, research support, and honoraria from various pharmaceutical companies.

Two biomarkers could potentially indicate which children with SARS-CoV-2 infection will develop severe disease, according to research presented at the American Academy of Pediatrics 2021 National Conference.

“Most children with COVID-19 present with common symptoms, such as fever, vomiting, and abdominal pain, which are very similar to other common viruses,” said senior researcher Usha Sethuraman, MD, professor of pediatric emergency medicine at Central Michigan University in Detroit.

“It is impossible, in many instances, to predict which child, even after identification of SARS-CoV-2 infection, is going to develop severe consequences, such as multisystem inflammatory syndrome [MIS-C] or severe pneumonia,” she said in an interview.

“In fact, many of these kids have been sent home the first time around as they appeared clinically well, only to return a couple of days later in cardiogenic shock and requiring invasive interventions,” she added. “It would be invaluable to have the ability to know which child is likely to develop severe infection so appropriate disposition can be made and treatment initiated.”

In their prospective observational cohort study, Dr. Sethuraman and her colleagues collected saliva samples from children and adolescents when they were diagnosed with SARS-CoV-2 infection. They assessed the saliva for micro (mi)RNAs, which are small noncoding RNAs that help regulate gene expression and are “thought to play a role in the regulation of inflammation following an infection,” the researchers write in their poster.

Of the 129 young people assessed, 32 (25%) developed severe infection and 97 (75%) did not. The researchers defined severe infection as an MIS-C diagnosis, death in the 30 days after diagnosis, or the need for at least 2 L of oxygen, inotropes, mechanical ventilation, or extracorporeal membrane oxygenation.

The expression of 63 miRNAs was significantly different between young people who developed severe infection and those who did not (P < .05). In cases of severe disease, expression was downregulated for 38 of the 63 miRNAs (60%).

“A model of six miRNAs was able to discriminate between severe and nonsevere infections with high sensitivity and accuracy in a preliminary analysis,” Dr. Sethuraman reported. “While salivary miRNA has been shown in other studies to help differentiate persistent concussion in children, we did not expect them to be downregulated in children with severe COVID-19.”

The significant differences in miRNA expression in those with and without severe disease is “striking,” despite this being an interim analysis in a fairly small sample size, said Sindhu Mohandas, MD, a pediatric infectious disease specialist at Children’s Hospital Los Angeles.

“It will be interesting to see if these findings persist when larger numbers are analyzed,” she told this news organization. “Biomarkers that can predict potential severity can be very useful in making risk and management determinations. A child who has the biomarkers that indicate increased severity can be monitored more closely and complications can be preempted and prevented.”

The largest difference between severe and nonsevere cases was in the expression of miRNA 4495. In addition, miRNA 6125 appears to have prognostic potential, the researchers conclude. And three cytokines from saliva samples were elevated in cases of severe infection, but cytokine levels could not distinguish between severe and nonsevere infections, Dr. Sethuraman said.

If further research confirms these findings and determines that these miRNAs truly can provide insight into the likely course of an infection, it “would be a game changer, clinically,” she added, particularly because saliva samples are less invasive and less painful than blood draws.

The potential applications of these biomarkers could extend beyond children admitted to the hospital, Dr. Mohandas noted.

“For example, it would be a noninvasive and easy method to predict potential severity in a child seen in the emergency room and could help with deciding between observation, admission to the general floor, or admission to the ICU,” she told this news organization. “However, this test is not easily or routinely available at present, and cost and accessibility will be the main factors that will have to be overcome before it can be used for this purpose.”

These findings are preliminary, from a small sample, and require confirmation and validation, Dr. Sethuraman cautioned. And the team only analyzed saliva collected at diagnosis, so they have no data on potential changes in cytokines or miRNAs that occur as the disease progresses.

The next step is to “better characterize what happens with time to these profiles,” she explained. “The role of age, race, and gender differences in saliva biomarker profiles needs additional investigation as well.”

It would also be interesting to see whether varied expression of miRNAs “can help differentiate the various complications after COVID-19, like acute respiratory failure, MIS-C, and long COVID,” said Dr. Mohandas. “That would mean it could be used not only to potentially predict severity, but also to predict longer-term outcomes.”

This study was supported by a grant from the Eunice Kennedy Shriver National Institute of Child Health and Human Development through the National Institutes of Health’s Rapid Acceleration of Diagnostics (RADx) program. Coauthor Steven D. Hicks, MD, PhD, reports being a paid consultant for Quadrant Biosciences.

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

Two biomarkers could potentially indicate which children with SARS-CoV-2 infection will develop severe disease, according to research presented at the American Academy of Pediatrics 2021 National Conference.

“Most children with COVID-19 present with common symptoms, such as fever, vomiting, and abdominal pain, which are very similar to other common viruses,” said senior researcher Usha Sethuraman, MD, professor of pediatric emergency medicine at Central Michigan University in Detroit.

“It is impossible, in many instances, to predict which child, even after identification of SARS-CoV-2 infection, is going to develop severe consequences, such as multisystem inflammatory syndrome [MIS-C] or severe pneumonia,” she said in an interview.

“In fact, many of these kids have been sent home the first time around as they appeared clinically well, only to return a couple of days later in cardiogenic shock and requiring invasive interventions,” she added. “It would be invaluable to have the ability to know which child is likely to develop severe infection so appropriate disposition can be made and treatment initiated.”

In their prospective observational cohort study, Dr. Sethuraman and her colleagues collected saliva samples from children and adolescents when they were diagnosed with SARS-CoV-2 infection. They assessed the saliva for micro (mi)RNAs, which are small noncoding RNAs that help regulate gene expression and are “thought to play a role in the regulation of inflammation following an infection,” the researchers write in their poster.

Of the 129 young people assessed, 32 (25%) developed severe infection and 97 (75%) did not. The researchers defined severe infection as an MIS-C diagnosis, death in the 30 days after diagnosis, or the need for at least 2 L of oxygen, inotropes, mechanical ventilation, or extracorporeal membrane oxygenation.

The expression of 63 miRNAs was significantly different between young people who developed severe infection and those who did not (P < .05). In cases of severe disease, expression was downregulated for 38 of the 63 miRNAs (60%).

“A model of six miRNAs was able to discriminate between severe and nonsevere infections with high sensitivity and accuracy in a preliminary analysis,” Dr. Sethuraman reported. “While salivary miRNA has been shown in other studies to help differentiate persistent concussion in children, we did not expect them to be downregulated in children with severe COVID-19.”

The significant differences in miRNA expression in those with and without severe disease is “striking,” despite this being an interim analysis in a fairly small sample size, said Sindhu Mohandas, MD, a pediatric infectious disease specialist at Children’s Hospital Los Angeles.

“It will be interesting to see if these findings persist when larger numbers are analyzed,” she told this news organization. “Biomarkers that can predict potential severity can be very useful in making risk and management determinations. A child who has the biomarkers that indicate increased severity can be monitored more closely and complications can be preempted and prevented.”

The largest difference between severe and nonsevere cases was in the expression of miRNA 4495. In addition, miRNA 6125 appears to have prognostic potential, the researchers conclude. And three cytokines from saliva samples were elevated in cases of severe infection, but cytokine levels could not distinguish between severe and nonsevere infections, Dr. Sethuraman said.

If further research confirms these findings and determines that these miRNAs truly can provide insight into the likely course of an infection, it “would be a game changer, clinically,” she added, particularly because saliva samples are less invasive and less painful than blood draws.

The potential applications of these biomarkers could extend beyond children admitted to the hospital, Dr. Mohandas noted.

“For example, it would be a noninvasive and easy method to predict potential severity in a child seen in the emergency room and could help with deciding between observation, admission to the general floor, or admission to the ICU,” she told this news organization. “However, this test is not easily or routinely available at present, and cost and accessibility will be the main factors that will have to be overcome before it can be used for this purpose.”

These findings are preliminary, from a small sample, and require confirmation and validation, Dr. Sethuraman cautioned. And the team only analyzed saliva collected at diagnosis, so they have no data on potential changes in cytokines or miRNAs that occur as the disease progresses.

The next step is to “better characterize what happens with time to these profiles,” she explained. “The role of age, race, and gender differences in saliva biomarker profiles needs additional investigation as well.”

It would also be interesting to see whether varied expression of miRNAs “can help differentiate the various complications after COVID-19, like acute respiratory failure, MIS-C, and long COVID,” said Dr. Mohandas. “That would mean it could be used not only to potentially predict severity, but also to predict longer-term outcomes.”

This study was supported by a grant from the Eunice Kennedy Shriver National Institute of Child Health and Human Development through the National Institutes of Health’s Rapid Acceleration of Diagnostics (RADx) program. Coauthor Steven D. Hicks, MD, PhD, reports being a paid consultant for Quadrant Biosciences.

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

Two biomarkers could potentially indicate which children with SARS-CoV-2 infection will develop severe disease, according to research presented at the American Academy of Pediatrics 2021 National Conference.

“Most children with COVID-19 present with common symptoms, such as fever, vomiting, and abdominal pain, which are very similar to other common viruses,” said senior researcher Usha Sethuraman, MD, professor of pediatric emergency medicine at Central Michigan University in Detroit.

“It is impossible, in many instances, to predict which child, even after identification of SARS-CoV-2 infection, is going to develop severe consequences, such as multisystem inflammatory syndrome [MIS-C] or severe pneumonia,” she said in an interview.

“In fact, many of these kids have been sent home the first time around as they appeared clinically well, only to return a couple of days later in cardiogenic shock and requiring invasive interventions,” she added. “It would be invaluable to have the ability to know which child is likely to develop severe infection so appropriate disposition can be made and treatment initiated.”

In their prospective observational cohort study, Dr. Sethuraman and her colleagues collected saliva samples from children and adolescents when they were diagnosed with SARS-CoV-2 infection. They assessed the saliva for micro (mi)RNAs, which are small noncoding RNAs that help regulate gene expression and are “thought to play a role in the regulation of inflammation following an infection,” the researchers write in their poster.

Of the 129 young people assessed, 32 (25%) developed severe infection and 97 (75%) did not. The researchers defined severe infection as an MIS-C diagnosis, death in the 30 days after diagnosis, or the need for at least 2 L of oxygen, inotropes, mechanical ventilation, or extracorporeal membrane oxygenation.

The expression of 63 miRNAs was significantly different between young people who developed severe infection and those who did not (P < .05). In cases of severe disease, expression was downregulated for 38 of the 63 miRNAs (60%).

“A model of six miRNAs was able to discriminate between severe and nonsevere infections with high sensitivity and accuracy in a preliminary analysis,” Dr. Sethuraman reported. “While salivary miRNA has been shown in other studies to help differentiate persistent concussion in children, we did not expect them to be downregulated in children with severe COVID-19.”

The significant differences in miRNA expression in those with and without severe disease is “striking,” despite this being an interim analysis in a fairly small sample size, said Sindhu Mohandas, MD, a pediatric infectious disease specialist at Children’s Hospital Los Angeles.

“It will be interesting to see if these findings persist when larger numbers are analyzed,” she told this news organization. “Biomarkers that can predict potential severity can be very useful in making risk and management determinations. A child who has the biomarkers that indicate increased severity can be monitored more closely and complications can be preempted and prevented.”

The largest difference between severe and nonsevere cases was in the expression of miRNA 4495. In addition, miRNA 6125 appears to have prognostic potential, the researchers conclude. And three cytokines from saliva samples were elevated in cases of severe infection, but cytokine levels could not distinguish between severe and nonsevere infections, Dr. Sethuraman said.

If further research confirms these findings and determines that these miRNAs truly can provide insight into the likely course of an infection, it “would be a game changer, clinically,” she added, particularly because saliva samples are less invasive and less painful than blood draws.

The potential applications of these biomarkers could extend beyond children admitted to the hospital, Dr. Mohandas noted.

“For example, it would be a noninvasive and easy method to predict potential severity in a child seen in the emergency room and could help with deciding between observation, admission to the general floor, or admission to the ICU,” she told this news organization. “However, this test is not easily or routinely available at present, and cost and accessibility will be the main factors that will have to be overcome before it can be used for this purpose.”

These findings are preliminary, from a small sample, and require confirmation and validation, Dr. Sethuraman cautioned. And the team only analyzed saliva collected at diagnosis, so they have no data on potential changes in cytokines or miRNAs that occur as the disease progresses.

The next step is to “better characterize what happens with time to these profiles,” she explained. “The role of age, race, and gender differences in saliva biomarker profiles needs additional investigation as well.”

It would also be interesting to see whether varied expression of miRNAs “can help differentiate the various complications after COVID-19, like acute respiratory failure, MIS-C, and long COVID,” said Dr. Mohandas. “That would mean it could be used not only to potentially predict severity, but also to predict longer-term outcomes.”

This study was supported by a grant from the Eunice Kennedy Shriver National Institute of Child Health and Human Development through the National Institutes of Health’s Rapid Acceleration of Diagnostics (RADx) program. Coauthor Steven D. Hicks, MD, PhD, reports being a paid consultant for Quadrant Biosciences.

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

Individuals with substance use disorders (SUDs) have a twofold increased risk for COVID-related hospitalization and death even after vaccination, new research shows.

Investigators analyzed data on over 10,000 vaccinated individuals with various SUDs and almost 600,000 vaccinated individuals without an SUD. They found about twice as many individuals with an SUD had a breakthrough COVID-19 infection as their counterparts without an SUD, at 7% versus 3.6%, respectively.

Worrisome phase

SUDs are “often associated with multiple comorbid conditions that are known risk factors for severe outcome of COVID-19 infection,” the investigators note.

Research published early in the pandemic showed patients with SUDs, including alcohol, cannabis, cocaine, opioid, and tobacco use disorders, were “at increased risk for COVID-19 infection and associated severe outcomes, especially among African Americans,” they add.

To date, no research has focused on the potential risk for COVID in individuals with SUDs following vaccination. In addition, although vaccines are “very effective,” breakthrough infections have been recorded, “highlighting the need to identify populations that might be most vulnerable, as we have entered a worrisome new phase of the pandemic,” the authors write.

For the study, researchers used a data analytics platform that included de-identified information from 63 health care organizations across the U.S. to estimate the risk for breakthrough COVID-19 among vaccinated patients with SUD (n = 30,183; mean age 59.3, 51.4% male, 63.2% White, 26.2% African American), compared with vaccinated individuals without SUDs (n = 549,189; mean age 54.7, 43.2% male, 63.4% White, 14.3% African American) between December 2020 and August 2021.

They also conducted statistical analyses to examine how the rate of breakthrough cases changed over that timeframe.

The cohorts were matched by demographics, adverse socioeconomic determinants of health, lifetime medical and psychiatric comorbidities, and vaccine type.

Among vaccinated SUD patients, three-quarters received the Pfizer-BioNTech vaccine, one-fifth received the Moderna vaccine, and 3.3% received the Johnson & Johnson vaccine.

In contrast, among the vaccinated non-SUD population, almost all (88.2%) received the Pfizer-BioNTech vaccine, 10% received Moderna, and only 1.2% received the Johnson & Johnson vaccine.
 

Underlying drivers

The prevalence of adverse socioeconomic determinants of health was higher in vaccinated individuals with SUDs compared to those without (7.9% vs. 1.2%, respectively). Moreover, vaccinated patients with SUD had a higher lifetime prevalence of all comorbidities as well as transplants (all Ps < .001).

The risk for breakthrough infection was significantly higher in vaccinated individuals with SUDs compared to those without (all Ps < .001).

After controlling for adverse socioeconomic determinants of health and comorbid medical conditions, the risk for breakthrough infection “no longer differed in SUD compared to non-SUD cohorts, except for patients with cannabis use disorder, who remained at significantly increased risk,” the authors report.

In both populations, the rate of breakthrough infections “steadily increased” between January and August 2021.

The risk for hospitalization and death was higher among those with breakthrough infections, compared with those in the matched cohort without breakthrough infections, but the risk for hospitalization and death were higher in the SUD compared with the non-SUD population.

In the SUD patients, after matching an array of demographic, socioeconomic, and medical factors as well as vaccine type, only cannabis use disorder was associated with a higher risk in African Americans, compared with matched Caucasians (HR = 1.63; 95% confidence interval, 1.06-2.51).

“When we adjusted the data to account for comorbidities and for socioeconomic background, we no longer saw a difference between those with substance use disorders and those without – the only exception to this was for people with cannabis use disorder,” said Dr. Volkow.

“This suggests that these factors, which are often associated with substance use disorders, are likely the underlying drivers for the increased risk,” she continued.

She added that it is important for other studies to investigate why individuals with cannabis use disorder had a higher risk for breakthrough infections.
 

Good news, bad news

Commenting for this news organization, Anna Lembke, MD, professor of psychiatry and behavioral sciences, Stanford (Calif.) University, said the study is important and contains good news and bad news.

The good news, she said, “is that, after controlling for comorbidities and socioeconomic variables, patients with SUDs are no more likely than patients without SUDs to get COVID after getting vaccinated, and the bad news is that if vaccinated patients with SUDs do get COVID, they’re more likely to end up hospitalized or die from it,” said Dr. Lembke, who was not involved with the study.

“The take-home message for clinicians is that if your vaccinated patient with an SUD gets COVID, be on the alert for a more complicated medical outcome and a higher risk of death,” warned Dr. Lembke.

This study was supported by the U.S. National Institute on Drug Abuse, the U.S. National Institute of Aging, and the Clinical and Translational Science Collaborative (CTSC) of Cleveland. No disclosures were listed on the original study. Dr. Lembke has disclosed no relevant financial relationships.

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

Individuals with substance use disorders (SUDs) have a twofold increased risk for COVID-related hospitalization and death even after vaccination, new research shows.

Investigators analyzed data on over 10,000 vaccinated individuals with various SUDs and almost 600,000 vaccinated individuals without an SUD. They found about twice as many individuals with an SUD had a breakthrough COVID-19 infection as their counterparts without an SUD, at 7% versus 3.6%, respectively.

Worrisome phase

SUDs are “often associated with multiple comorbid conditions that are known risk factors for severe outcome of COVID-19 infection,” the investigators note.

Research published early in the pandemic showed patients with SUDs, including alcohol, cannabis, cocaine, opioid, and tobacco use disorders, were “at increased risk for COVID-19 infection and associated severe outcomes, especially among African Americans,” they add.

To date, no research has focused on the potential risk for COVID in individuals with SUDs following vaccination. In addition, although vaccines are “very effective,” breakthrough infections have been recorded, “highlighting the need to identify populations that might be most vulnerable, as we have entered a worrisome new phase of the pandemic,” the authors write.

For the study, researchers used a data analytics platform that included de-identified information from 63 health care organizations across the U.S. to estimate the risk for breakthrough COVID-19 among vaccinated patients with SUD (n = 30,183; mean age 59.3, 51.4% male, 63.2% White, 26.2% African American), compared with vaccinated individuals without SUDs (n = 549,189; mean age 54.7, 43.2% male, 63.4% White, 14.3% African American) between December 2020 and August 2021.

They also conducted statistical analyses to examine how the rate of breakthrough cases changed over that timeframe.

The cohorts were matched by demographics, adverse socioeconomic determinants of health, lifetime medical and psychiatric comorbidities, and vaccine type.

Among vaccinated SUD patients, three-quarters received the Pfizer-BioNTech vaccine, one-fifth received the Moderna vaccine, and 3.3% received the Johnson & Johnson vaccine.

In contrast, among the vaccinated non-SUD population, almost all (88.2%) received the Pfizer-BioNTech vaccine, 10% received Moderna, and only 1.2% received the Johnson & Johnson vaccine.
 

Underlying drivers

The prevalence of adverse socioeconomic determinants of health was higher in vaccinated individuals with SUDs compared to those without (7.9% vs. 1.2%, respectively). Moreover, vaccinated patients with SUD had a higher lifetime prevalence of all comorbidities as well as transplants (all Ps < .001).

The risk for breakthrough infection was significantly higher in vaccinated individuals with SUDs compared to those without (all Ps < .001).

After controlling for adverse socioeconomic determinants of health and comorbid medical conditions, the risk for breakthrough infection “no longer differed in SUD compared to non-SUD cohorts, except for patients with cannabis use disorder, who remained at significantly increased risk,” the authors report.

In both populations, the rate of breakthrough infections “steadily increased” between January and August 2021.

The risk for hospitalization and death was higher among those with breakthrough infections, compared with those in the matched cohort without breakthrough infections, but the risk for hospitalization and death were higher in the SUD compared with the non-SUD population.

In the SUD patients, after matching an array of demographic, socioeconomic, and medical factors as well as vaccine type, only cannabis use disorder was associated with a higher risk in African Americans, compared with matched Caucasians (HR = 1.63; 95% confidence interval, 1.06-2.51).

“When we adjusted the data to account for comorbidities and for socioeconomic background, we no longer saw a difference between those with substance use disorders and those without – the only exception to this was for people with cannabis use disorder,” said Dr. Volkow.

“This suggests that these factors, which are often associated with substance use disorders, are likely the underlying drivers for the increased risk,” she continued.

She added that it is important for other studies to investigate why individuals with cannabis use disorder had a higher risk for breakthrough infections.
 

Good news, bad news

Commenting for this news organization, Anna Lembke, MD, professor of psychiatry and behavioral sciences, Stanford (Calif.) University, said the study is important and contains good news and bad news.

The good news, she said, “is that, after controlling for comorbidities and socioeconomic variables, patients with SUDs are no more likely than patients without SUDs to get COVID after getting vaccinated, and the bad news is that if vaccinated patients with SUDs do get COVID, they’re more likely to end up hospitalized or die from it,” said Dr. Lembke, who was not involved with the study.

“The take-home message for clinicians is that if your vaccinated patient with an SUD gets COVID, be on the alert for a more complicated medical outcome and a higher risk of death,” warned Dr. Lembke.

This study was supported by the U.S. National Institute on Drug Abuse, the U.S. National Institute of Aging, and the Clinical and Translational Science Collaborative (CTSC) of Cleveland. No disclosures were listed on the original study. Dr. Lembke has disclosed no relevant financial relationships.

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

Individuals with substance use disorders (SUDs) have a twofold increased risk for COVID-related hospitalization and death even after vaccination, new research shows.

Investigators analyzed data on over 10,000 vaccinated individuals with various SUDs and almost 600,000 vaccinated individuals without an SUD. They found about twice as many individuals with an SUD had a breakthrough COVID-19 infection as their counterparts without an SUD, at 7% versus 3.6%, respectively.

Worrisome phase

SUDs are “often associated with multiple comorbid conditions that are known risk factors for severe outcome of COVID-19 infection,” the investigators note.

Research published early in the pandemic showed patients with SUDs, including alcohol, cannabis, cocaine, opioid, and tobacco use disorders, were “at increased risk for COVID-19 infection and associated severe outcomes, especially among African Americans,” they add.

To date, no research has focused on the potential risk for COVID in individuals with SUDs following vaccination. In addition, although vaccines are “very effective,” breakthrough infections have been recorded, “highlighting the need to identify populations that might be most vulnerable, as we have entered a worrisome new phase of the pandemic,” the authors write.

For the study, researchers used a data analytics platform that included de-identified information from 63 health care organizations across the U.S. to estimate the risk for breakthrough COVID-19 among vaccinated patients with SUD (n = 30,183; mean age 59.3, 51.4% male, 63.2% White, 26.2% African American), compared with vaccinated individuals without SUDs (n = 549,189; mean age 54.7, 43.2% male, 63.4% White, 14.3% African American) between December 2020 and August 2021.

They also conducted statistical analyses to examine how the rate of breakthrough cases changed over that timeframe.

The cohorts were matched by demographics, adverse socioeconomic determinants of health, lifetime medical and psychiatric comorbidities, and vaccine type.

Among vaccinated SUD patients, three-quarters received the Pfizer-BioNTech vaccine, one-fifth received the Moderna vaccine, and 3.3% received the Johnson & Johnson vaccine.

In contrast, among the vaccinated non-SUD population, almost all (88.2%) received the Pfizer-BioNTech vaccine, 10% received Moderna, and only 1.2% received the Johnson & Johnson vaccine.
 

Underlying drivers

The prevalence of adverse socioeconomic determinants of health was higher in vaccinated individuals with SUDs compared to those without (7.9% vs. 1.2%, respectively). Moreover, vaccinated patients with SUD had a higher lifetime prevalence of all comorbidities as well as transplants (all Ps < .001).

The risk for breakthrough infection was significantly higher in vaccinated individuals with SUDs compared to those without (all Ps < .001).

After controlling for adverse socioeconomic determinants of health and comorbid medical conditions, the risk for breakthrough infection “no longer differed in SUD compared to non-SUD cohorts, except for patients with cannabis use disorder, who remained at significantly increased risk,” the authors report.

In both populations, the rate of breakthrough infections “steadily increased” between January and August 2021.

The risk for hospitalization and death was higher among those with breakthrough infections, compared with those in the matched cohort without breakthrough infections, but the risk for hospitalization and death were higher in the SUD compared with the non-SUD population.

In the SUD patients, after matching an array of demographic, socioeconomic, and medical factors as well as vaccine type, only cannabis use disorder was associated with a higher risk in African Americans, compared with matched Caucasians (HR = 1.63; 95% confidence interval, 1.06-2.51).

“When we adjusted the data to account for comorbidities and for socioeconomic background, we no longer saw a difference between those with substance use disorders and those without – the only exception to this was for people with cannabis use disorder,” said Dr. Volkow.

“This suggests that these factors, which are often associated with substance use disorders, are likely the underlying drivers for the increased risk,” she continued.

She added that it is important for other studies to investigate why individuals with cannabis use disorder had a higher risk for breakthrough infections.
 

Good news, bad news

Commenting for this news organization, Anna Lembke, MD, professor of psychiatry and behavioral sciences, Stanford (Calif.) University, said the study is important and contains good news and bad news.

The good news, she said, “is that, after controlling for comorbidities and socioeconomic variables, patients with SUDs are no more likely than patients without SUDs to get COVID after getting vaccinated, and the bad news is that if vaccinated patients with SUDs do get COVID, they’re more likely to end up hospitalized or die from it,” said Dr. Lembke, who was not involved with the study.

“The take-home message for clinicians is that if your vaccinated patient with an SUD gets COVID, be on the alert for a more complicated medical outcome and a higher risk of death,” warned Dr. Lembke.

This study was supported by the U.S. National Institute on Drug Abuse, the U.S. National Institute of Aging, and the Clinical and Translational Science Collaborative (CTSC) of Cleveland. No disclosures were listed on the original study. Dr. Lembke has disclosed no relevant financial relationships.

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

A new U.S. government study shows it isn’t risky and may even be a good idea to mix, rather than match, COVID-19 vaccines when getting a booster dose.

The study also shows mixing different kinds of vaccines appears to spur the body to make higher levels of virus-blocking antibodies than they would have gotten by boosting with a dose of the vaccine the person already had.

If regulators endorse the study findings, it should make getting a COVID-19 booster as easy as getting a yearly influenza vaccine.

“Currently when you go to do your flu shot nobody asks you what kind you had last year. Nobody cares what you had last year. And we were hoping that that was the same — that we would be able to boost regardless of what you had [previously],” said the study’s senior author, John Beigel, MD, who is associate director for clinical research in the division of microbiology and infectious diseases at the National Institutes of Health.

“But we needed to have the data,” he said.

Studies have suggested that higher antibody levels translate into better protection against disease, though the exact level that confers protection is not yet known.

“The antibody responses are so much higher [with mix and match], it’s really impressive,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville, who was not involved in the study.

Dr. Shaffner said if the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) sign off on the approach, he would especially recommend that people who got the Johnson & Johnson vaccine follow up with a dose of an mRNA vaccine from Pfizer or Moderna.

“It is a broader stimulation of the immune system, and I think that broader stimulation is advantageous,” he said.

Minimal side effects

The preprint study was published late Oct. 13 in medRxiv ahead of peer review, just before a slate of meetings involving vaccine experts that advise the FDA and CDC. 

These experts are tasked with trying to figure out whether additional shots of Moderna and Johnson & Johnson vaccines are safe and effective for boosting immunity against COVID-19.

The FDA’s panel is the Vaccines and Related Biological Products Advisory Committee (VRBPAC), and the CDC’s panel is the Advisory Committee on Immunization Practices (ACIP). 

During the pandemic, they have been meeting almost in lock step to tackle important vaccine-related questions.

“We got this data out because we knew VRBPAC was coming and we knew ACIP was going to grapple with these issues,” Dr. Beigel said.

He noted that these are just the first results. The study will continue for a year, and the researchers aim to deeply characterize the breadth and depth of the immune response to all nine of the different vaccine combinations included in the study.

The study included 458 participants at 10 study sites around the country who had been fully vaccinated with one of the three COVID-19 vaccines authorized for use in the United States: Moderna, Johnson & Johnson, or Pfizer-BioNTech. 

About 150 study participants were recruited from each group. Everyone in the study had finished their primary series at least 12 weeks before starting the study. None had a prior SARS-CoV-2 infection.

About 50 participants from each vaccine group were randomly assigned to get a third (booster) dose of either the same vaccine as the one they had already received, or a different vaccine, creating nine possible combinations of shots.

About half of study participants reported mild side effects — including pain at the injection site, fatigue, headache, and muscle aches.

Two study participants had serious medical problems during the study, but they were judged to be unrelated to vaccination. One study participant experienced kidney failure after their muscles broke down following a fall. The other experienced cholecystitis, or an inflamed gallbladder. 

Up to 1 month after the booster shots, no other serious adverse events were seen.

The study didn’t look at whether people got COVID-19, so it’s not possible to say that they were better protected against disease after their boosters.

Increase in antibodies

But all the groups saw substantial increases in their antibody levels, which is thought to indicate that they were better protected.

Overall, groups that got the same vaccine as their primary series saw 4 to 20-fold increases in their antibody levels. Groups that got different shots than the ones in their primary series got 6 to 76 fold increases in their antibody levels.

People who had originally gotten a Johnson & Johnson vaccine saw far bigger increases in antibodies, and were more likely to see a protective rise in antibodies if they got a second dose of an mRNA vaccine.

Dr. Schaffner noted that European countries had already been mixing the vaccine doses this way, giving people who had received the AstraZeneca vaccine, which is similar to the Johnson & Johnson shot, another dose of an mRNA vaccine.

German Chancellor Angela Merkel received a Moderna vaccine for her second dose after an initial shot of the Oxford-AstraZeneca vaccines, for example.

No safety signals related to mixing vaccines has been seen in countries that routinely use the approach for their initial series.

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

A new U.S. government study shows it isn’t risky and may even be a good idea to mix, rather than match, COVID-19 vaccines when getting a booster dose.

The study also shows mixing different kinds of vaccines appears to spur the body to make higher levels of virus-blocking antibodies than they would have gotten by boosting with a dose of the vaccine the person already had.

If regulators endorse the study findings, it should make getting a COVID-19 booster as easy as getting a yearly influenza vaccine.

“Currently when you go to do your flu shot nobody asks you what kind you had last year. Nobody cares what you had last year. And we were hoping that that was the same — that we would be able to boost regardless of what you had [previously],” said the study’s senior author, John Beigel, MD, who is associate director for clinical research in the division of microbiology and infectious diseases at the National Institutes of Health.

“But we needed to have the data,” he said.

Studies have suggested that higher antibody levels translate into better protection against disease, though the exact level that confers protection is not yet known.

“The antibody responses are so much higher [with mix and match], it’s really impressive,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville, who was not involved in the study.

Dr. Shaffner said if the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) sign off on the approach, he would especially recommend that people who got the Johnson & Johnson vaccine follow up with a dose of an mRNA vaccine from Pfizer or Moderna.

“It is a broader stimulation of the immune system, and I think that broader stimulation is advantageous,” he said.

Minimal side effects

The preprint study was published late Oct. 13 in medRxiv ahead of peer review, just before a slate of meetings involving vaccine experts that advise the FDA and CDC. 

These experts are tasked with trying to figure out whether additional shots of Moderna and Johnson & Johnson vaccines are safe and effective for boosting immunity against COVID-19.

The FDA’s panel is the Vaccines and Related Biological Products Advisory Committee (VRBPAC), and the CDC’s panel is the Advisory Committee on Immunization Practices (ACIP). 

During the pandemic, they have been meeting almost in lock step to tackle important vaccine-related questions.

“We got this data out because we knew VRBPAC was coming and we knew ACIP was going to grapple with these issues,” Dr. Beigel said.

He noted that these are just the first results. The study will continue for a year, and the researchers aim to deeply characterize the breadth and depth of the immune response to all nine of the different vaccine combinations included in the study.

The study included 458 participants at 10 study sites around the country who had been fully vaccinated with one of the three COVID-19 vaccines authorized for use in the United States: Moderna, Johnson & Johnson, or Pfizer-BioNTech. 

About 150 study participants were recruited from each group. Everyone in the study had finished their primary series at least 12 weeks before starting the study. None had a prior SARS-CoV-2 infection.

About 50 participants from each vaccine group were randomly assigned to get a third (booster) dose of either the same vaccine as the one they had already received, or a different vaccine, creating nine possible combinations of shots.

About half of study participants reported mild side effects — including pain at the injection site, fatigue, headache, and muscle aches.

Two study participants had serious medical problems during the study, but they were judged to be unrelated to vaccination. One study participant experienced kidney failure after their muscles broke down following a fall. The other experienced cholecystitis, or an inflamed gallbladder. 

Up to 1 month after the booster shots, no other serious adverse events were seen.

The study didn’t look at whether people got COVID-19, so it’s not possible to say that they were better protected against disease after their boosters.

Increase in antibodies

But all the groups saw substantial increases in their antibody levels, which is thought to indicate that they were better protected.

Overall, groups that got the same vaccine as their primary series saw 4 to 20-fold increases in their antibody levels. Groups that got different shots than the ones in their primary series got 6 to 76 fold increases in their antibody levels.

People who had originally gotten a Johnson & Johnson vaccine saw far bigger increases in antibodies, and were more likely to see a protective rise in antibodies if they got a second dose of an mRNA vaccine.

Dr. Schaffner noted that European countries had already been mixing the vaccine doses this way, giving people who had received the AstraZeneca vaccine, which is similar to the Johnson & Johnson shot, another dose of an mRNA vaccine.

German Chancellor Angela Merkel received a Moderna vaccine for her second dose after an initial shot of the Oxford-AstraZeneca vaccines, for example.

No safety signals related to mixing vaccines has been seen in countries that routinely use the approach for their initial series.

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

A new U.S. government study shows it isn’t risky and may even be a good idea to mix, rather than match, COVID-19 vaccines when getting a booster dose.

The study also shows mixing different kinds of vaccines appears to spur the body to make higher levels of virus-blocking antibodies than they would have gotten by boosting with a dose of the vaccine the person already had.

If regulators endorse the study findings, it should make getting a COVID-19 booster as easy as getting a yearly influenza vaccine.

“Currently when you go to do your flu shot nobody asks you what kind you had last year. Nobody cares what you had last year. And we were hoping that that was the same — that we would be able to boost regardless of what you had [previously],” said the study’s senior author, John Beigel, MD, who is associate director for clinical research in the division of microbiology and infectious diseases at the National Institutes of Health.

“But we needed to have the data,” he said.

Studies have suggested that higher antibody levels translate into better protection against disease, though the exact level that confers protection is not yet known.

“The antibody responses are so much higher [with mix and match], it’s really impressive,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville, who was not involved in the study.

Dr. Shaffner said if the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) sign off on the approach, he would especially recommend that people who got the Johnson & Johnson vaccine follow up with a dose of an mRNA vaccine from Pfizer or Moderna.

“It is a broader stimulation of the immune system, and I think that broader stimulation is advantageous,” he said.

Minimal side effects

The preprint study was published late Oct. 13 in medRxiv ahead of peer review, just before a slate of meetings involving vaccine experts that advise the FDA and CDC. 

These experts are tasked with trying to figure out whether additional shots of Moderna and Johnson & Johnson vaccines are safe and effective for boosting immunity against COVID-19.

The FDA’s panel is the Vaccines and Related Biological Products Advisory Committee (VRBPAC), and the CDC’s panel is the Advisory Committee on Immunization Practices (ACIP). 

During the pandemic, they have been meeting almost in lock step to tackle important vaccine-related questions.

“We got this data out because we knew VRBPAC was coming and we knew ACIP was going to grapple with these issues,” Dr. Beigel said.

He noted that these are just the first results. The study will continue for a year, and the researchers aim to deeply characterize the breadth and depth of the immune response to all nine of the different vaccine combinations included in the study.

The study included 458 participants at 10 study sites around the country who had been fully vaccinated with one of the three COVID-19 vaccines authorized for use in the United States: Moderna, Johnson & Johnson, or Pfizer-BioNTech. 

About 150 study participants were recruited from each group. Everyone in the study had finished their primary series at least 12 weeks before starting the study. None had a prior SARS-CoV-2 infection.

About 50 participants from each vaccine group were randomly assigned to get a third (booster) dose of either the same vaccine as the one they had already received, or a different vaccine, creating nine possible combinations of shots.

About half of study participants reported mild side effects — including pain at the injection site, fatigue, headache, and muscle aches.

Two study participants had serious medical problems during the study, but they were judged to be unrelated to vaccination. One study participant experienced kidney failure after their muscles broke down following a fall. The other experienced cholecystitis, or an inflamed gallbladder. 

Up to 1 month after the booster shots, no other serious adverse events were seen.

The study didn’t look at whether people got COVID-19, so it’s not possible to say that they were better protected against disease after their boosters.

Increase in antibodies

But all the groups saw substantial increases in their antibody levels, which is thought to indicate that they were better protected.

Overall, groups that got the same vaccine as their primary series saw 4 to 20-fold increases in their antibody levels. Groups that got different shots than the ones in their primary series got 6 to 76 fold increases in their antibody levels.

People who had originally gotten a Johnson & Johnson vaccine saw far bigger increases in antibodies, and were more likely to see a protective rise in antibodies if they got a second dose of an mRNA vaccine.

Dr. Schaffner noted that European countries had already been mixing the vaccine doses this way, giving people who had received the AstraZeneca vaccine, which is similar to the Johnson & Johnson shot, another dose of an mRNA vaccine.

German Chancellor Angela Merkel received a Moderna vaccine for her second dose after an initial shot of the Oxford-AstraZeneca vaccines, for example.

No safety signals related to mixing vaccines has been seen in countries that routinely use the approach for their initial series.

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

Many pediatric patients with headache experienced increased headache frequency, increased anxiety, and worsening mood through the first year of the COVID-19 pandemic, a newly released survey finds. But some actually found the pandemic era to be less stressful since they were tightly wound and could more easily control their home environments, a researcher said.

“We need to be very mindful of the connections between school and home environments – and social situations – and how they impact headache frequency,” said Marc DiSabella, DO, a pediatric neurologist at Children’s National Hospital/George Washington University, Washington. He is coauthor of a poster presented at the 50th annual meeting of the Child Neurology Society.

Dr. DiSabella and colleagues launched the survey to understand what headache patients were experiencing during the pandemic. They expected that “things were going to go really terrible in terms of headaches – or things would go great, and then things would crash when we had to reintegrate into society,” he said in an interview.

The team surveyed 113 pediatric patients who were evaluated at the hospital’s headache clinic between summer 2020 and winter 2021. Most of the patients were female (60%) and were aged 12-17 years (63%). Twenty-one percent were younger than 12 and 16% were older than 17. Chronic migraine (37%) was the most common diagnosis, followed by migraine with aura (22%), migraine without aura (19%), and new daily persistent headache (15%).

Nearly half (46%) of patients said their headaches had worsened during the pandemic. Many also reported more anxiety (55%), worsened mood (48%) and more stress (55%).

Dr. DiSabella said it’s especially notable that nearly two-thirds of those surveyed reported they were exercising less during the pandemic. Research has suggested that exercise and proper diet/sleep are crucial to improving headaches in kids, he said, and the survey findings suggest that exercise may be especially important. “Engaging in physical activity changes their pain threshold,” he said.

The researchers also reported that 60% of those surveyed said they looked at screens more than 6 hours per day. According to Dr. DiSabella, high screen use may not be worrisome from a headache perspective. “We have another study in publication that shows there’s not a clear association between frequency of screen use and headache intensity,” he said.

The survey doesn’t examine what has happened in recent weeks as schools have reopened. Anecdotally, Dr. DiSabella said some patients with migraine are feeling the stress of returning to normal routines. “They tend to be type A perfectionists and do well when they’re in control of their environment,” he said. “Now they’ve lost the control they had at home and are being put back into a stressful environment.”
 

Pandemic effects mixed

Commenting on the study, child neurologist Andrew D. Hershey, MD, PhD, of Cincinnati Children’s Hospital Medical Center, questioned the finding that many children suffered from more headaches during the pandemic. In his experience, “headaches were overall better when [children] were doing virtual learning,” he said in an interview. “We had fewer admissions, ED visits declined, and patients were maintaining better healthy habits. Some did express anxiety about not seeing friends, but were accommodating by doing this remotely.”

He added: “Since their return, kids are back to the same sleep deprivation issue since schools start too early, and they have more difficulty treating headaches acutely since they have to go to the nurse’s office [to do so]. They self-report a higher degree of stress and anxiety.”

On the other hand, Jack Gladstein, MD, a child neurologist at the University of Maryland, Baltimore, said in an interview that most of his patients suffered more headaches during the pandemic, although a small number with social anxiety thrived because they got to stay at home.

He agreed with Dr. DiSabella about the value of exercise. “At every visit we remind our youngsters with migraine to eat breakfast, exercise, get regular sleep, and drink fluids,” he said.

No study funding was reported. The study authors, Dr. Hershey, and Dr. Gladstein reported no disclosures.

Many pediatric patients with headache experienced increased headache frequency, increased anxiety, and worsening mood through the first year of the COVID-19 pandemic, a newly released survey finds. But some actually found the pandemic era to be less stressful since they were tightly wound and could more easily control their home environments, a researcher said.

“We need to be very mindful of the connections between school and home environments – and social situations – and how they impact headache frequency,” said Marc DiSabella, DO, a pediatric neurologist at Children’s National Hospital/George Washington University, Washington. He is coauthor of a poster presented at the 50th annual meeting of the Child Neurology Society.

Dr. DiSabella and colleagues launched the survey to understand what headache patients were experiencing during the pandemic. They expected that “things were going to go really terrible in terms of headaches – or things would go great, and then things would crash when we had to reintegrate into society,” he said in an interview.

The team surveyed 113 pediatric patients who were evaluated at the hospital’s headache clinic between summer 2020 and winter 2021. Most of the patients were female (60%) and were aged 12-17 years (63%). Twenty-one percent were younger than 12 and 16% were older than 17. Chronic migraine (37%) was the most common diagnosis, followed by migraine with aura (22%), migraine without aura (19%), and new daily persistent headache (15%).

Nearly half (46%) of patients said their headaches had worsened during the pandemic. Many also reported more anxiety (55%), worsened mood (48%) and more stress (55%).

Dr. DiSabella said it’s especially notable that nearly two-thirds of those surveyed reported they were exercising less during the pandemic. Research has suggested that exercise and proper diet/sleep are crucial to improving headaches in kids, he said, and the survey findings suggest that exercise may be especially important. “Engaging in physical activity changes their pain threshold,” he said.

The researchers also reported that 60% of those surveyed said they looked at screens more than 6 hours per day. According to Dr. DiSabella, high screen use may not be worrisome from a headache perspective. “We have another study in publication that shows there’s not a clear association between frequency of screen use and headache intensity,” he said.

The survey doesn’t examine what has happened in recent weeks as schools have reopened. Anecdotally, Dr. DiSabella said some patients with migraine are feeling the stress of returning to normal routines. “They tend to be type A perfectionists and do well when they’re in control of their environment,” he said. “Now they’ve lost the control they had at home and are being put back into a stressful environment.”
 

Pandemic effects mixed

Commenting on the study, child neurologist Andrew D. Hershey, MD, PhD, of Cincinnati Children’s Hospital Medical Center, questioned the finding that many children suffered from more headaches during the pandemic. In his experience, “headaches were overall better when [children] were doing virtual learning,” he said in an interview. “We had fewer admissions, ED visits declined, and patients were maintaining better healthy habits. Some did express anxiety about not seeing friends, but were accommodating by doing this remotely.”

He added: “Since their return, kids are back to the same sleep deprivation issue since schools start too early, and they have more difficulty treating headaches acutely since they have to go to the nurse’s office [to do so]. They self-report a higher degree of stress and anxiety.”

On the other hand, Jack Gladstein, MD, a child neurologist at the University of Maryland, Baltimore, said in an interview that most of his patients suffered more headaches during the pandemic, although a small number with social anxiety thrived because they got to stay at home.

He agreed with Dr. DiSabella about the value of exercise. “At every visit we remind our youngsters with migraine to eat breakfast, exercise, get regular sleep, and drink fluids,” he said.

No study funding was reported. The study authors, Dr. Hershey, and Dr. Gladstein reported no disclosures.

Many pediatric patients with headache experienced increased headache frequency, increased anxiety, and worsening mood through the first year of the COVID-19 pandemic, a newly released survey finds. But some actually found the pandemic era to be less stressful since they were tightly wound and could more easily control their home environments, a researcher said.

“We need to be very mindful of the connections between school and home environments – and social situations – and how they impact headache frequency,” said Marc DiSabella, DO, a pediatric neurologist at Children’s National Hospital/George Washington University, Washington. He is coauthor of a poster presented at the 50th annual meeting of the Child Neurology Society.

Dr. DiSabella and colleagues launched the survey to understand what headache patients were experiencing during the pandemic. They expected that “things were going to go really terrible in terms of headaches – or things would go great, and then things would crash when we had to reintegrate into society,” he said in an interview.

The team surveyed 113 pediatric patients who were evaluated at the hospital’s headache clinic between summer 2020 and winter 2021. Most of the patients were female (60%) and were aged 12-17 years (63%). Twenty-one percent were younger than 12 and 16% were older than 17. Chronic migraine (37%) was the most common diagnosis, followed by migraine with aura (22%), migraine without aura (19%), and new daily persistent headache (15%).

Nearly half (46%) of patients said their headaches had worsened during the pandemic. Many also reported more anxiety (55%), worsened mood (48%) and more stress (55%).

Dr. DiSabella said it’s especially notable that nearly two-thirds of those surveyed reported they were exercising less during the pandemic. Research has suggested that exercise and proper diet/sleep are crucial to improving headaches in kids, he said, and the survey findings suggest that exercise may be especially important. “Engaging in physical activity changes their pain threshold,” he said.

The researchers also reported that 60% of those surveyed said they looked at screens more than 6 hours per day. According to Dr. DiSabella, high screen use may not be worrisome from a headache perspective. “We have another study in publication that shows there’s not a clear association between frequency of screen use and headache intensity,” he said.

The survey doesn’t examine what has happened in recent weeks as schools have reopened. Anecdotally, Dr. DiSabella said some patients with migraine are feeling the stress of returning to normal routines. “They tend to be type A perfectionists and do well when they’re in control of their environment,” he said. “Now they’ve lost the control they had at home and are being put back into a stressful environment.”
 

Pandemic effects mixed

Commenting on the study, child neurologist Andrew D. Hershey, MD, PhD, of Cincinnati Children’s Hospital Medical Center, questioned the finding that many children suffered from more headaches during the pandemic. In his experience, “headaches were overall better when [children] were doing virtual learning,” he said in an interview. “We had fewer admissions, ED visits declined, and patients were maintaining better healthy habits. Some did express anxiety about not seeing friends, but were accommodating by doing this remotely.”

He added: “Since their return, kids are back to the same sleep deprivation issue since schools start too early, and they have more difficulty treating headaches acutely since they have to go to the nurse’s office [to do so]. They self-report a higher degree of stress and anxiety.”

On the other hand, Jack Gladstein, MD, a child neurologist at the University of Maryland, Baltimore, said in an interview that most of his patients suffered more headaches during the pandemic, although a small number with social anxiety thrived because they got to stay at home.

He agreed with Dr. DiSabella about the value of exercise. “At every visit we remind our youngsters with migraine to eat breakfast, exercise, get regular sleep, and drink fluids,” he said.

No study funding was reported. The study authors, Dr. Hershey, and Dr. Gladstein reported no disclosures.

The proportion of children caught up on vaccinations is lower than 2019 levels, despite an increase in weekly vaccine administration among children from summer to fall 2020.

The finding, published in JAMA Pediatrics, joins a growing collection of studies examining the COVID-19 pandemic’s effect on routine pediatric vaccine delivery. A 2021 survey from the Urban Institute that found that nearly one in five parents delayed or did not get care for their children in the past 12 months because of fear of exposure to the virus.

“We need to think about what additional interventions are needed to promote catch-up vaccination, especially for those at-risk populations that we saw were undervaccinated even prior to the pandemic,” study author Malini B. DeSilva, MD, MPH, said in an interview. “[That means] working creatively to ensure that all children would have the opportunity to receive these recommended vaccines.”

While examining data on pediatric vaccination of 1.4 million children between Jan. 5, 2020, and Oct. 3, 2020, across eight health systems in California, Oregon, Washington, Colorado, Minnesota, and Wisconsin, Dr. DeSilva and colleagues saw vaccination administration rates return to near prepandemic levels after an initial decline, particularly after the Centers for Disease Control and Prevention and American Academy of Pediatrics guidelines specified that in-person visits for children younger than 2 years should be prioritized.

“I think we’ve all been concerned and aware that people just weren’t bringing their children to their pediatricians as frequently [caused by] the fear of being in medical settings during the heat of the pandemic,” said James Schneider, MD, who was not involved with the study. “So it’s not surprising that we saw lower rates of overall vaccinations in all age groups.”

The current study found that lower vaccination rates persisted among most age groups from March to September 2020. However, during the period of expanded primary care, which took place between May and October 2020, vaccination administration rates in infants younger than 2 years old and children aged 4-6 years approached or were equal to 2019 rates. However, these rebounds were not enough to make up for the missed vaccines.

Still, only 74% of infants reaching 7 months old in September 2020 were caught up on their vaccinations, compared with 81% of infants turning the same age in 2019. Researchers also found that, compared with 61% of infants reaching 18 months in September 2019, only 57% of 18-month-olds were up to date with vaccinations in September 2020. However, the proportion of 6-, 13-, and 18-year-olds up to date on vaccinations were about the same in 2020 and 2019.

Racial disparities also persisted during this time, with Black children having the lowest proportion of up-to-date vaccinations for most ages from January to September 2020. Although these disparities were evident prior to the pandemic, these differences became more pronounced for the 18-month-old age group, where just 41% of Black infants were up to date in vaccinations, compared with 76% of Asian infants, 54% of Hispanics infants, and 56% of White infants.

Dr. Schneider believes Dr. DeSilva’s study is a “robust” one and paints an accurate picture of the pandemic’s effect on pediatric vaccinations, despite examining data from just eight health systems.

“I think it’s a fairly reasonable representation of what we already have been recognizing during the pandemic,” he explained. “Which is that people are really reluctant to go to their physicians’ offices for routine care because of the fear of getting sick. I think the study emphasized the importance of catching these children up to keep them safe in the future.”

The Advisory Committee on Immunization Practices recommends a childhood immunization schedule that protects children against 14 infectious diseases before their second birthday. Since the on-time administration of these vaccines is essential for preventing communicable diseases, many pediatric offices are trying to ensure a safe environment for patients and families, said Dr. Schneider, chief of pediatric critical care at Cohen Children’s Medical Center, New York.

There’s also some concern that COVID-19 vaccine hesitancy my spillover into routine childhood vaccinations, especially for families who were already hesitant toward the routine well-established vaccine schedule for children.

The CDC and AAP recommend that children continue to receive recommended vaccinations during the COVID-19 pandemic.

To boost the number of children caught up on vaccinations, health system and community-level interventions are needed, especially in underserved communities, the researchers wrote. Additionally, enforcing mandates that require vaccination prior to school entry could also increase vaccine administration across populations and reduce disparities.

The study emphasizes the “immediate and lagging” disruptions in the delivery of pediatric health care caused by the pandemic, which will likely have long-term consequences for pediatric health, Brian P. Jenssen, MD, MSHP, who was not involved in the study, wrote in a solicited commentary.

However, interventions tailored to specific age groups could help remedy this. These include increasing the frequency of well-child care during the next year of life for infants younger than 24 months and prioritizing visits with 13-year-old adolescents who are behind on vaccinations.

“Although there is no evidence base for this approach, such a change could create not only catch-up opportunities for vaccination for children delayed at age 7 and 18 months, but also provide opportunities to attend to developmental concerns and social needs that have emerged during COVID-19,” wrote Dr. Jenssen, a researcher and primary care pediatrician at Children’s Hospital of Philadelphia.

Other practices such as reaching out to patients and families directly via text message, email, or phone to “notify them of needed vaccinations,” vaccine mandates, and having pediatric health systems partner with alternative settings to promote vaccination could also get kids back on track, health wise. Furthermore, financial incentives from insurers or primary care practices also may help.

“The COVID-19 pandemic’s lost care may have long-term consequences unless pediatric health care systems and child health advocates are proactive in engaging families to take advantage of every opportunity to catch up,” Dr. Jenssen wrote.

The proportion of children caught up on vaccinations is lower than 2019 levels, despite an increase in weekly vaccine administration among children from summer to fall 2020.

The finding, published in JAMA Pediatrics, joins a growing collection of studies examining the COVID-19 pandemic’s effect on routine pediatric vaccine delivery. A 2021 survey from the Urban Institute that found that nearly one in five parents delayed or did not get care for their children in the past 12 months because of fear of exposure to the virus.

“We need to think about what additional interventions are needed to promote catch-up vaccination, especially for those at-risk populations that we saw were undervaccinated even prior to the pandemic,” study author Malini B. DeSilva, MD, MPH, said in an interview. “[That means] working creatively to ensure that all children would have the opportunity to receive these recommended vaccines.”

While examining data on pediatric vaccination of 1.4 million children between Jan. 5, 2020, and Oct. 3, 2020, across eight health systems in California, Oregon, Washington, Colorado, Minnesota, and Wisconsin, Dr. DeSilva and colleagues saw vaccination administration rates return to near prepandemic levels after an initial decline, particularly after the Centers for Disease Control and Prevention and American Academy of Pediatrics guidelines specified that in-person visits for children younger than 2 years should be prioritized.

“I think we’ve all been concerned and aware that people just weren’t bringing their children to their pediatricians as frequently [caused by] the fear of being in medical settings during the heat of the pandemic,” said James Schneider, MD, who was not involved with the study. “So it’s not surprising that we saw lower rates of overall vaccinations in all age groups.”

The current study found that lower vaccination rates persisted among most age groups from March to September 2020. However, during the period of expanded primary care, which took place between May and October 2020, vaccination administration rates in infants younger than 2 years old and children aged 4-6 years approached or were equal to 2019 rates. However, these rebounds were not enough to make up for the missed vaccines.

Still, only 74% of infants reaching 7 months old in September 2020 were caught up on their vaccinations, compared with 81% of infants turning the same age in 2019. Researchers also found that, compared with 61% of infants reaching 18 months in September 2019, only 57% of 18-month-olds were up to date with vaccinations in September 2020. However, the proportion of 6-, 13-, and 18-year-olds up to date on vaccinations were about the same in 2020 and 2019.

Racial disparities also persisted during this time, with Black children having the lowest proportion of up-to-date vaccinations for most ages from January to September 2020. Although these disparities were evident prior to the pandemic, these differences became more pronounced for the 18-month-old age group, where just 41% of Black infants were up to date in vaccinations, compared with 76% of Asian infants, 54% of Hispanics infants, and 56% of White infants.

Dr. Schneider believes Dr. DeSilva’s study is a “robust” one and paints an accurate picture of the pandemic’s effect on pediatric vaccinations, despite examining data from just eight health systems.

“I think it’s a fairly reasonable representation of what we already have been recognizing during the pandemic,” he explained. “Which is that people are really reluctant to go to their physicians’ offices for routine care because of the fear of getting sick. I think the study emphasized the importance of catching these children up to keep them safe in the future.”

The Advisory Committee on Immunization Practices recommends a childhood immunization schedule that protects children against 14 infectious diseases before their second birthday. Since the on-time administration of these vaccines is essential for preventing communicable diseases, many pediatric offices are trying to ensure a safe environment for patients and families, said Dr. Schneider, chief of pediatric critical care at Cohen Children’s Medical Center, New York.

There’s also some concern that COVID-19 vaccine hesitancy my spillover into routine childhood vaccinations, especially for families who were already hesitant toward the routine well-established vaccine schedule for children.

The CDC and AAP recommend that children continue to receive recommended vaccinations during the COVID-19 pandemic.

To boost the number of children caught up on vaccinations, health system and community-level interventions are needed, especially in underserved communities, the researchers wrote. Additionally, enforcing mandates that require vaccination prior to school entry could also increase vaccine administration across populations and reduce disparities.

The study emphasizes the “immediate and lagging” disruptions in the delivery of pediatric health care caused by the pandemic, which will likely have long-term consequences for pediatric health, Brian P. Jenssen, MD, MSHP, who was not involved in the study, wrote in a solicited commentary.

However, interventions tailored to specific age groups could help remedy this. These include increasing the frequency of well-child care during the next year of life for infants younger than 24 months and prioritizing visits with 13-year-old adolescents who are behind on vaccinations.

“Although there is no evidence base for this approach, such a change could create not only catch-up opportunities for vaccination for children delayed at age 7 and 18 months, but also provide opportunities to attend to developmental concerns and social needs that have emerged during COVID-19,” wrote Dr. Jenssen, a researcher and primary care pediatrician at Children’s Hospital of Philadelphia.

Other practices such as reaching out to patients and families directly via text message, email, or phone to “notify them of needed vaccinations,” vaccine mandates, and having pediatric health systems partner with alternative settings to promote vaccination could also get kids back on track, health wise. Furthermore, financial incentives from insurers or primary care practices also may help.

“The COVID-19 pandemic’s lost care may have long-term consequences unless pediatric health care systems and child health advocates are proactive in engaging families to take advantage of every opportunity to catch up,” Dr. Jenssen wrote.

The proportion of children caught up on vaccinations is lower than 2019 levels, despite an increase in weekly vaccine administration among children from summer to fall 2020.

The finding, published in JAMA Pediatrics, joins a growing collection of studies examining the COVID-19 pandemic’s effect on routine pediatric vaccine delivery. A 2021 survey from the Urban Institute that found that nearly one in five parents delayed or did not get care for their children in the past 12 months because of fear of exposure to the virus.

“We need to think about what additional interventions are needed to promote catch-up vaccination, especially for those at-risk populations that we saw were undervaccinated even prior to the pandemic,” study author Malini B. DeSilva, MD, MPH, said in an interview. “[That means] working creatively to ensure that all children would have the opportunity to receive these recommended vaccines.”

While examining data on pediatric vaccination of 1.4 million children between Jan. 5, 2020, and Oct. 3, 2020, across eight health systems in California, Oregon, Washington, Colorado, Minnesota, and Wisconsin, Dr. DeSilva and colleagues saw vaccination administration rates return to near prepandemic levels after an initial decline, particularly after the Centers for Disease Control and Prevention and American Academy of Pediatrics guidelines specified that in-person visits for children younger than 2 years should be prioritized.

“I think we’ve all been concerned and aware that people just weren’t bringing their children to their pediatricians as frequently [caused by] the fear of being in medical settings during the heat of the pandemic,” said James Schneider, MD, who was not involved with the study. “So it’s not surprising that we saw lower rates of overall vaccinations in all age groups.”

The current study found that lower vaccination rates persisted among most age groups from March to September 2020. However, during the period of expanded primary care, which took place between May and October 2020, vaccination administration rates in infants younger than 2 years old and children aged 4-6 years approached or were equal to 2019 rates. However, these rebounds were not enough to make up for the missed vaccines.

Still, only 74% of infants reaching 7 months old in September 2020 were caught up on their vaccinations, compared with 81% of infants turning the same age in 2019. Researchers also found that, compared with 61% of infants reaching 18 months in September 2019, only 57% of 18-month-olds were up to date with vaccinations in September 2020. However, the proportion of 6-, 13-, and 18-year-olds up to date on vaccinations were about the same in 2020 and 2019.

Racial disparities also persisted during this time, with Black children having the lowest proportion of up-to-date vaccinations for most ages from January to September 2020. Although these disparities were evident prior to the pandemic, these differences became more pronounced for the 18-month-old age group, where just 41% of Black infants were up to date in vaccinations, compared with 76% of Asian infants, 54% of Hispanics infants, and 56% of White infants.

Dr. Schneider believes Dr. DeSilva’s study is a “robust” one and paints an accurate picture of the pandemic’s effect on pediatric vaccinations, despite examining data from just eight health systems.

“I think it’s a fairly reasonable representation of what we already have been recognizing during the pandemic,” he explained. “Which is that people are really reluctant to go to their physicians’ offices for routine care because of the fear of getting sick. I think the study emphasized the importance of catching these children up to keep them safe in the future.”

The Advisory Committee on Immunization Practices recommends a childhood immunization schedule that protects children against 14 infectious diseases before their second birthday. Since the on-time administration of these vaccines is essential for preventing communicable diseases, many pediatric offices are trying to ensure a safe environment for patients and families, said Dr. Schneider, chief of pediatric critical care at Cohen Children’s Medical Center, New York.

There’s also some concern that COVID-19 vaccine hesitancy my spillover into routine childhood vaccinations, especially for families who were already hesitant toward the routine well-established vaccine schedule for children.

The CDC and AAP recommend that children continue to receive recommended vaccinations during the COVID-19 pandemic.

To boost the number of children caught up on vaccinations, health system and community-level interventions are needed, especially in underserved communities, the researchers wrote. Additionally, enforcing mandates that require vaccination prior to school entry could also increase vaccine administration across populations and reduce disparities.

The study emphasizes the “immediate and lagging” disruptions in the delivery of pediatric health care caused by the pandemic, which will likely have long-term consequences for pediatric health, Brian P. Jenssen, MD, MSHP, who was not involved in the study, wrote in a solicited commentary.

However, interventions tailored to specific age groups could help remedy this. These include increasing the frequency of well-child care during the next year of life for infants younger than 24 months and prioritizing visits with 13-year-old adolescents who are behind on vaccinations.

“Although there is no evidence base for this approach, such a change could create not only catch-up opportunities for vaccination for children delayed at age 7 and 18 months, but also provide opportunities to attend to developmental concerns and social needs that have emerged during COVID-19,” wrote Dr. Jenssen, a researcher and primary care pediatrician at Children’s Hospital of Philadelphia.

Other practices such as reaching out to patients and families directly via text message, email, or phone to “notify them of needed vaccinations,” vaccine mandates, and having pediatric health systems partner with alternative settings to promote vaccination could also get kids back on track, health wise. Furthermore, financial incentives from insurers or primary care practices also may help.

“The COVID-19 pandemic’s lost care may have long-term consequences unless pediatric health care systems and child health advocates are proactive in engaging families to take advantage of every opportunity to catch up,” Dr. Jenssen wrote.

Most vaccines are given with hypodermic needle injections. But shots aren’t necessarily the most efficient or effective way to deliver a vaccine. Scientists have been experimenting with microneedle patches to painlessly deliver a vaccine into the outermost layer of the skin with dozens of extremely tiny needles coated in the vaccine solution.

Now, researchers have found a three-dimensional printing method that lets them customize microneedle shapes in the patches for different pathogens, such as flu, measles, hepatitis, or COVID-19. In tests using mice, the patches led to stronger and longer-lasting immune responses than traditional shots under the skin. The research team described their findings in the Proceedings of the National Academy of Sciences.
 

Tiny needles, big advantages

Previous research has shown delivering vaccines into the skin can cause a stronger immune response because the skin has a high concentration of immune cells. But shots can be painful and require skilled medical providers.

Microneedles painlessly deliver the vaccine into the skin without the need for a trained clinician. In fact, a person can even give the vaccine to themselves.

The needles – made of metal, silicon, or plastic – are so tiny that they puncture only the tough outermost layer of skin. The prospect of a painless vaccination without a hypodermic needle may ease anxiety in people who fear needles.

Scientists also can store dried patches after coating them with the vaccine solution, so there’s no preparation needed before giving the vaccine and the patches may not even require cold storage. This latest study suggests that the patches generate a stronger immune response than standard shots, allowing for a smaller dose than traditional vaccine delivery methods and possibly fewer side effects.
 

Breaking the mold

Past methods of making microneedle patches often used molds, but that approach limited the ability to customize patches for different diseases. Repeatedly using same mold also can blunt the tiny needles.

For the three-dimensional–printed patches, Cassie Caudill at the University of North Carolina at Chapel Hill and colleagues used a printing technique that allows greater control over and consistency in the shape of the microneedles. The investigators printed two shapes: a slender pyramid microneedle that is similar to previous versions, and one with serrated grooves that resembles a pine tree.

The increased surface area from the grooves let researchers add 36% more of the ingredient that causes an immune response, compared with using only the pyramid shape, yet still less than a conventional shot. At only 1 cm by 1 cm, each patch contains 100 microneedles that are just over 1 mm long. The researchers found that in mice the patch drew a stronger immune response than a conventional shot, despite carrying a much smaller dose of vaccine ingredient.

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

Most vaccines are given with hypodermic needle injections. But shots aren’t necessarily the most efficient or effective way to deliver a vaccine. Scientists have been experimenting with microneedle patches to painlessly deliver a vaccine into the outermost layer of the skin with dozens of extremely tiny needles coated in the vaccine solution.

Now, researchers have found a three-dimensional printing method that lets them customize microneedle shapes in the patches for different pathogens, such as flu, measles, hepatitis, or COVID-19. In tests using mice, the patches led to stronger and longer-lasting immune responses than traditional shots under the skin. The research team described their findings in the Proceedings of the National Academy of Sciences.
 

Tiny needles, big advantages

Previous research has shown delivering vaccines into the skin can cause a stronger immune response because the skin has a high concentration of immune cells. But shots can be painful and require skilled medical providers.

Microneedles painlessly deliver the vaccine into the skin without the need for a trained clinician. In fact, a person can even give the vaccine to themselves.

The needles – made of metal, silicon, or plastic – are so tiny that they puncture only the tough outermost layer of skin. The prospect of a painless vaccination without a hypodermic needle may ease anxiety in people who fear needles.

Scientists also can store dried patches after coating them with the vaccine solution, so there’s no preparation needed before giving the vaccine and the patches may not even require cold storage. This latest study suggests that the patches generate a stronger immune response than standard shots, allowing for a smaller dose than traditional vaccine delivery methods and possibly fewer side effects.
 

Breaking the mold

Past methods of making microneedle patches often used molds, but that approach limited the ability to customize patches for different diseases. Repeatedly using same mold also can blunt the tiny needles.

For the three-dimensional–printed patches, Cassie Caudill at the University of North Carolina at Chapel Hill and colleagues used a printing technique that allows greater control over and consistency in the shape of the microneedles. The investigators printed two shapes: a slender pyramid microneedle that is similar to previous versions, and one with serrated grooves that resembles a pine tree.

The increased surface area from the grooves let researchers add 36% more of the ingredient that causes an immune response, compared with using only the pyramid shape, yet still less than a conventional shot. At only 1 cm by 1 cm, each patch contains 100 microneedles that are just over 1 mm long. The researchers found that in mice the patch drew a stronger immune response than a conventional shot, despite carrying a much smaller dose of vaccine ingredient.

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

Most vaccines are given with hypodermic needle injections. But shots aren’t necessarily the most efficient or effective way to deliver a vaccine. Scientists have been experimenting with microneedle patches to painlessly deliver a vaccine into the outermost layer of the skin with dozens of extremely tiny needles coated in the vaccine solution.

Now, researchers have found a three-dimensional printing method that lets them customize microneedle shapes in the patches for different pathogens, such as flu, measles, hepatitis, or COVID-19. In tests using mice, the patches led to stronger and longer-lasting immune responses than traditional shots under the skin. The research team described their findings in the Proceedings of the National Academy of Sciences.
 

Tiny needles, big advantages

Previous research has shown delivering vaccines into the skin can cause a stronger immune response because the skin has a high concentration of immune cells. But shots can be painful and require skilled medical providers.

Microneedles painlessly deliver the vaccine into the skin without the need for a trained clinician. In fact, a person can even give the vaccine to themselves.

The needles – made of metal, silicon, or plastic – are so tiny that they puncture only the tough outermost layer of skin. The prospect of a painless vaccination without a hypodermic needle may ease anxiety in people who fear needles.

Scientists also can store dried patches after coating them with the vaccine solution, so there’s no preparation needed before giving the vaccine and the patches may not even require cold storage. This latest study suggests that the patches generate a stronger immune response than standard shots, allowing for a smaller dose than traditional vaccine delivery methods and possibly fewer side effects.
 

Breaking the mold

Past methods of making microneedle patches often used molds, but that approach limited the ability to customize patches for different diseases. Repeatedly using same mold also can blunt the tiny needles.

For the three-dimensional–printed patches, Cassie Caudill at the University of North Carolina at Chapel Hill and colleagues used a printing technique that allows greater control over and consistency in the shape of the microneedles. The investigators printed two shapes: a slender pyramid microneedle that is similar to previous versions, and one with serrated grooves that resembles a pine tree.

The increased surface area from the grooves let researchers add 36% more of the ingredient that causes an immune response, compared with using only the pyramid shape, yet still less than a conventional shot. At only 1 cm by 1 cm, each patch contains 100 microneedles that are just over 1 mm long. The researchers found that in mice the patch drew a stronger immune response than a conventional shot, despite carrying a much smaller dose of vaccine ingredient.

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