Vials of the newly reformulated COVID-19 vaccine booster are being readied by Pfizer for distribution now that the Food and Drug Administration has authorized the shots for people 12 and older. Pfizer Inc. hide caption
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The FDA is trying to make "bivalent" COVID vaccines, which target two different antigens, available as soon as September. Robyn Beck/AFP via Getty Images hide caption
Reformulated COVID vaccine boosters may be available earlier than expected
Wednesday
The FDA has authorized second booster shots for people over 50 and for some people who are immunocompromised. Justin Sullivan/Getty Images hide caption