Pfizer seeks U.S. authorization for vaccine booster retooled for Omicron Pfizer Inc and German partner BioNTech said on Monday they had sought U.S. authorization for a COVID-19 vaccine booster retooled to target the Omicron variant, and would have doses available to ship immediately after regulatory clearance. Reuters Reuters

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The request to the Food and Drug Administration was for a so-called bivalent vaccine containing the dominant BA.4/BA.5 variants of the virus along with the original coronavirus strain. It is intended for ages 12 and above.

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