BREAKING NEWS

The F.D.A. authorized second booster shots of the Pfizer and Moderna vaccines for everyone 50 and older and some immunocompromised people.

Tuesday, March 29, 2022 10:54 AM EST

The Food and Drug Administration made the decision with scant data, as an interim measure to strengthen protection for older Americans until the fall, when federal health officials say they expect that everyone will need another shot.

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