

Today, we amended the emergency use authorization (EUA) for the Pfizer-BioNTech COVID-19 Vaccine to allow for use of a single booster dose, to be administered at least 6 months after completion of the vaccine’s primary series in certain populations. https://t.co/xF8h0kmF61 pic.twitter.com/3dsIhM9MoV
— U.S. FDA (@US_FDA) September 22, 2021