By Apoorva Mandavilli

None of the data on coronavirus vaccines so far provides credible evidence in support of boosters for the general population, according to a review published on Monday by an international group of scientists, including some at the Food and Drug Administration and the World Health Organization.

The 18 authors include Dr. Philip Krause and Dr. Marion Gruber, F.D.A. scientists who announced last month that they will be leaving the agency, at least in part because they disagreed with the Biden administration’s push for boosters before federal scientists could review the evidence and make recommendations.

The Biden administration has proposed administering vaccine boosters eight months after the initial shots. But many scientists have opposed the plan, saying the vaccines continue to be powerfully protective against severe illness and hospitalization. A committee of advisers to the F.D.A. is scheduled to meet on Friday to review the data.

In the new review, published in The Lancet, experts said that whatever advantage boosters provide would not outweigh the benefit of using those doses to protect the billions of people who remain unvaccinated worldwide. Boosters may be useful in some people with weak immune systems, they said, but are not yet needed for the general population.

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