The US Food and Drug Administration will now require Covid-19 vaccines from Pfizer/BioNTech and Moderna to use expanded warning labels with more information about the risk of a rare heart condition after vaccination.

The Food and Drug Administration says it has decided to continue approving COVID-19 vaccine updates for seniors and others at higher risk of severe disease, but will require vaccine makers to conduct major new clinical trials before approving them for wider use.

CAMBRIDGE, MA / ACCESS Newswire / May 23, 2025 / Moderna, Inc. (NASDAQ:MRNA) today announced that it has submitted an application to the U.S. Food and Drug Administration (FDA) for review of its Spikevax 2025-2026 formula,