By BY APOORVA MANDAVILLI from NYT Science https://ift.tt/2MTltNo
via IFTTT The F.D.A. prepares plan if vaccines prove less effective against new variants. BY APOORVA MANDAVILLI https://ift.tt/2MTltNo https://ift.tt/3tDrkY2 New York Times Science internal-essential February 5, 2021 at 07:54AM
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