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Will kids or pregnant women be able to get a COVID-19 vaccine?

TODAY logo TODAY 1 day ago Maura Hohman
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Within the past several weeks, efforts to distribute a safe and effective COVID-19 vaccine seem to have actually hit warp speed. But questions remain about who will get the vaccine when, especially for kids and pregnant women.

Two leading pharmaceutical companies, Moderna and Pfizer, have submitted their candidates for authorization from the Food and Drug Administration, and a third, AstraZeneca, has also released preliminary efficacy data. On Tuesday, the Centers for Disease Control and Prevention's Advisory Committee on Immunization Practices (ACIP) met to discuss the order in which various populations should receive the vaccine.

The first group — which most experts agree should include health care workers, with high-risk individuals not far behind — could get the vaccine by the end of December, Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said on Meet the Press Sunday.

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In fact, the vaccine could be "in people's arms" within 24 to 48 hours of emergency use authorization being granted, said Moncef Slaoui, chief adviser of Operation Warp Speed, the government initiative to expedite distribution of a COVID-19 vaccine, at a Washington Post forum on Tuesday.

Still, the vaccine research at this stage has largely left out two crucial groups that must be vaccinated to keep the coronavirus fully at bay: pregnant people and children.

Only Pfizer has included kids as young as 12 in its clinical trials, and ACIP said in a statement from late October that it expects to have only "limited data" on pregnancy from the third and final phase of the trials before authorization. This is especially troubling as pregnant women seem more likely to get severely ill from COVID-19 than their non-pregnant counterparts.

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"The sooner we can get a vaccine out to everybody, you can reduce transmission to everyone," Dr. Yvonne Maldonado, a professor of pediatric infectious disease at Stanford University and member of the American Academy of Pediatrics' Committee on Infectious Diseases, told TODAY. "As long as there are people out there who can spread it, we're just not going to get rid of this pandemic."

When will there be a COVID-19 vaccine for kids?

As of late October, Pfizer had enrolled nationwide 100 kids between 12 and 15 and 200 between 16 and 17, Dr. Robert Frenck, director of the Vaccine Research Center at trial site Cincinnati Children's, told TODAY via email. A Pfizer spokesperson said at the time that "several sites" were enrolling participants between the ages of 12 and 15, as well.

In these trials, half of participants receive a placebo, and the other half receive the actual vaccine. The patients, doctors and nurses don't know who received which in what's called a double-blind study.

The plan is to recruit 2,000 kids between 12 and 15 for the Pfizer trial, and 600 total 16 to 17-year-olds, Frenck said, adding that researchers are looking for the same safety and immune response outcomes in kids as in adults. "If the immune response in kids is the same or better than in adults and if the vaccine is shown (to be) protective in adults, we will make the extrapolation that the vaccine should be protective in kids," he explained.

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Frenck said in late October that he wasn't aware of Pfizer's plans to test the vaccine in kids younger than 12, and a Pfizer spokesperson did not share specifics about plans to expand pediatric trials at the time. But usually, the next groups to be included would be ages 11 to 5, then 5 to 2 and 2 to 6 months last, Dr. Octavio Ramilo, chief of infectious diseases at Nationwide Children’s Hospital in Columbus, Ohio, told TODAY.

"Even the vaccines that we developed for young babies, you always give it to adults first," he clarified.

It's unclear right now when the COVID-19 vaccine may be available to all kids, at least in part because there could be challenges to recruiting participants the longer trials go on, Ramilo said. It's also worth noting that that the distribution plan outlined by the Centers for Disease Control and Prevention doesn’t say when children would receive the vaccine, but it likely wouldn’t be until the later phases.

Slaoui said Tuesday that his personal opinion is that children and young, healthy adults should receive the vaccine last. Fauci said Sunday that a new round of trials in pediatric populations will "very likely" begin in January, but it could still be "months" until it's available for children.

In late October, Frenck said there was a "good chance" that a vaccine would be available "at least for kids 12 years of age and above" by the start of the 2021 school year.

Maldonado added that she thinks "it could be feasible to think about a vaccine for kids in the fall of next year, but that's a really, pretty big guess. We don't know, but at least there's a possibility."

When will there be a COVID-19 vaccine that's safe for pregnant women?

Even though the Centers for Disease Control and Prevention recommends every pregnant woman be vaccinated against influenza and whooping cough, pregnant women historically haven't been included in vaccine trials, said Dr. Stephanie Gaw, an obstetrician and assistant professor at University of California's San Francisco campus, who researches COVID-19 and pregnancy.

The flu shot in particular was never trialed in pregnant women but was determined to be safe after years of gathering data from women who got it without knowing they were pregnant or women who knew but got it anyway, Gaw said. This lack of systematic data gathering ultimately leads to delays in FDA approval for the pregnant population, she continued, adding that she has similar concerns about the drugs currently being trialed to treat COVID-19 (rather than prevent it).

"If they're not enrolled in a trial, then we can't do long-term follow-up because the biggest question about doing trials in pregnant women is what happens to the baby," she explained. "In a sense, not doing these trials on pregnant women, basically pregnant women are kind of always in this very uncontrolled trial, real life."

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Dr. Denise Jamieson, chair of the department of obstetrics and gynecology at Emory University School of Medicine in Atlanta and member of the American College of Obstetricians and Gynecologists' COVID-19 OB Expert Work Group, said her biggest concern with excluding pregnant women from trials is that "women are going to be excluded from being able to get the vaccine based on their pregnancies."

"Women who would otherwise ... be prioritized for vaccinations, such as health care workers, will not be given the opportunity to be vaccinated (if they're pregnant) ... which is really problematic."

With the first COVID-19 vaccines likely being approved with emergency use authorization (EUA) from the FDA, Jamieson said, "it'll be important that pregnant women are provided the opportunity, with careful counseling, to be vaccinated, even if there's not a lot of safety information."

Whether an EUA for a COVID-19 vaccine will include pregnant women is unclear at this stage. What's more, the CDC's interim plan for vaccine distribution does not explicitly include the pregnant population, despite them being higher risk. ACIP said in its October statement that pregnancy should not be a reason to not give the vaccine to people who fall into first group for distribution, such as pregnant health care workers.

How to talk to your doctor about the COVID-19 vaccine for your kids or if you're pregnant

As the widespread nature of COVID-19 vaccine trials suggest, it's crucial to have data to be able to make an informed decision about the safety of a given vaccine. If you're wondering whether it's worthwhile for you to give your children the vaccine, especially if they're high-risk, or to get it yourself if you're pregnant, then talk to your doctor.

You'll likely embark on the process of "shared decision-making," as Maldonado called it, where the family and provider decide together whether the possible risk of the vaccine, ideally determined with data in-hand, is worth it to protect against the disease.

"That could be something to be done early on, depending on the supply of the vaccine," she said.

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For pregnancy, the conversation with your provider could be similar, if it's available to the pregnant population. As Jamieson explained it, "There are models whereby rather than just saying, 'We don't have any safety data, you can't get the vaccine because you're pregnant,' you counsel them."

"The way you counsel them is you say, 'Look, we don't have any information about this vaccine. This is what we know about the risks. This is what we know specifically about your risk.'" Jamieson added that your doctor should also clearly explain the unknowns and benefits and possibly discuss data from similar types of vaccines that have been used during pregnancy before.

"Hopefully, we'll have more than one vaccine to choose from, and the messaging will evolve over time as more vaccines become available," she said. "I don't think the right answer is the simple answer, which is just to say, 'We don't have the safety data in pregnant women, and therefore, we will not offer you the vaccine.'"

This story was updated on Dec. 1 to include more information about vaccine distribution.

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