FDA authorizes mix-and-match boosters, clears Moderna and J&J vaccines

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FILE – This Wednesday, Dec. 23, 2020 file photo shows a vial of the Moderna COVID-19 vaccine in the first round of staff vaccinations at a hospital in Denver. U.S. health advisers are debating if millions of Americans who received Moderna vaccinations should get a booster shot — this time, using half the original dose. Already millions who got their initial Pfizer shots at least six months ago are getting a booster of that brand. On Thursday, Oct. 14, 2021, advisers to the Food and Drug Administration evaluated the evidence that Moderna boosters should be offered, too — and on Friday, they’ll tackle the same question for those who got Johnson & Johnson’s vaccine. (AP Photo/David Zalubowski, File)

WASHINGTON (NEXSTAR) — U.S. regulators on Wednesday signed off on extending COVID-19 boosters to Americans who got the Moderna or Johnson & Johnson vaccine and said anyone eligible for an extra dose can get a brand different from the one they received initially.

The Food and Drug Administration’s decisions mark a big step toward expanding the U.S. booster campaign, which began with extra doses of the Pfizer vaccine last month. But before more people roll up their sleeves, the Centers for Disease Control and Prevention will consult an expert panel later this week before finalizing official recommendations for who should get boosters and when.

The latest moves would expand by tens of millions the number of Americans eligible for boosters and formally allow “mixing and matching” of shots — making it simpler to get another dose, especially for people who had a side effect from one brand but still want the proven protection of vaccination.

Specifically, the FDA authorized a third Moderna shot for seniors and others at high risk from COVID-19 because of their health problems, jobs or living conditions — six months after their last shot. One big change: Moderna’s booster will be half the dose that’s used for the first two shots, based on company data showing that was plenty to rev up immunity again.

For J&J’s single-shot vaccine, the FDA said all U.S. recipients should get a second dose at least two months following their initial vaccination.

The FDA rulings differ because the vaccines are made differently, with different dosing schedules — and the J&J vaccine has consistently shown a lower level of effectiveness than either of the two-shot Moderna and Pfizer vaccines.

“Today’s actions demonstrate our commitment to public health in proactively fighting against the COVID-19 pandemic,” said Acting FDA Commissioner Janet Woodcock, M.D. “As the pandemic continues to impact the country, science has shown that vaccination continues to be the safest and most effective way to prevent COVID-19, including the most serious consequences of the disease, such as hospitalization and death. The available data suggest waning immunity in some populations who are fully vaccinated. The availability of these authorized boosters is important for continued protection against COVID-19 disease.”

The Associated Press contributed to this report.

Copyright 2021 Nexstar Media Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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