Seasonal COVID shots may no longer be possible under Trump admin

arstechnica.comPublished: 4/28/2025

Summary

The Food and Drug Administration (FDA) may no longer approve updated COVID-19 vaccines targeting new viral variants circulating each year under President Trump's administration, raising concerns about vaccine consistency and efficacy. Vaccine manufacturers annually tweak their shots to match the latest virus strains, similar to how flu vaccines are slightly modified but not re-approved due to their similarity to existing ones. However, the FDA has delayed finalizing an emergency-use authorization for Novavax's COVID-19 vaccine, which uses a protein-based technology instead of mRNA, complicating the annual update process.