Moderna is Investigating Allergic Reactions to its COVID-19 Vaccine

Moderna said Tuesday that it is investigating reported allergic reactions from one batch of its COVID-19 vaccine after California recommended pausing vaccinations.
State epidemiologist Erica Pan recommended on Sunday that health care providers pause administering doses from lot 041L20A while the state investigates a “higher-than-usual number of possible allergic reactions” that were reported with doses that were administered at a community vaccination clinic.
Pan said at the time that California, Moderna, the Food and Drug Administration (FDA), and the Centers for Disease Control and Prevention (CDC) are all investigating.