F.D.A. Authorizes Pfizer Booster Shot for Higher-Risk People
WASHINGTON — After weeks of internal strife at the Food and Drug Administration, the agency on Wednesday authorized people over 65 who had received Pfizer-BioNTech’s coronavirus vaccine to get a booster shot at least six months after their second injection. The F.D.A. also authorized booster shots for adult Pfizer-BioNTech recipients who are at high risk…