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Axios
Axios
Health

FDA authorizes Omicron boosters

The Food and Drug Administration on Wednesday authorized updated versions of COVID-19 vaccines from Pfizer and Moderna that are tailored to be more effective against the Omicron variant.

Why it matters: The updated shots, retooled to target the BA.5 strain that accounts for most cases in the U.S. today, are expected to become available after Labor Day.


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