Source: Joe Palca, WUNC, 11/9/21


Pfizer and BioNTech have asked the Food and Drug Administration to authorize their COVID-19 booster shot to all people 18 and older. The companies say the request is based on results from a study of more than 10,000 volunteers that show vaccine efficacy of 95% or greater for people receiving the booster. The two companies made a similar request in September, but at that time a committee of independent experts that advises the FDA on vaccine matters voted against it.

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