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

By Sydney Lupkin
Published February 11, 2021 at 5:09 AM MST

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.

Copyright 2021 NPR
NPR Coronavirus Updates
Sydney Lupkin
Sydney Lupkin is the pharmaceuticals correspondent for NPR.
See stories by Sydney Lupkin