Modern said Tuesday she is investigating allergic reactions reported by a batch of her COVID-19 vaccine after California recommended making vaccines.
State epidemiologist Erica Pan recommended on Sunday that health care providers stop administering doses of batch 041L20A while the state investigates a “higher-than-usual number of possible allergic reactions” that were reported with doses that were administered in a clinic community vaccination program.
Pan said then that California, Modern, the Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) are investigating.
In a statement Tuesday, Modern said he “acknowledges having received a report from the California Department of Public Health (CDPH), several people at a San Diego vaccination center were treated for possible allergic reactions after vaccination” of the batch.
The company said it is unaware of the “comparable groups” of adverse events from other vaccination centers that may have administered doses from the same batches.
“This investigation is still ongoing and Moderna is working closely with the FDA and CDC to understand the clinical cases and whether the extensive pause in batch use is justified,” the company said.
The company did not specify exactly how many people reported adverse reactions on Sunday. However, The Associated Press previously reported that six San Diego health workers had allergic reactions to the vaccines they received Thursday at a vaccination center.
The Hill has contacted the FDA and CDC for feedback.
A total of 1,272,000 doses were produced in the batch, of which 964,900 have already been distributed in 37 states, Moderna said. The CDPH said it received 330,000 doses of the batch which were distributed to 287 suppliers.