FDA Aims To Be 'Nimble' On COVID-19 Vaccine Changes For Variants

By Sydney Lupkin

Published February 11, 2021 at 5:09 AM MST

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The Food and Drug Administration is working on a playbook for how it could greenlight vaccine tweaks. Studies in hundreds of people, rather than tens of thousands, seem likely.

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Sydney Lupkin

Sydney Lupkin is the pharmaceuticals correspondent for NPR.

See stories by Sydney Lupkin