In what is becoming a familiar routine, the US Food and Drug Administration expanded the emergency use authorization for the Pfizer Inc./BioNTech SE coronavirus vaccine to allow more groups to receive an additional dose, as well as shortened the time between the primary series and third shot, without an advisory committee meeting.
Children age 12 to 15 now are eligible for a booster shot of the Pfizer/BioNTech vaccine, the FDA announced on...