Moderna said on Tuesday that it is investigating reported allergic reactions to a batch of its COVID-19 vaccine after California recommended pausing the vaccination.
State Epidemiologist Erica Pan recommended on sunday that healthcare professionals pause administration of batch 041L20A doses while the state investigates a “greater than normal number of possible allergic reactions” that have been reported with doses administered at a community vaccination clinic.
Pan said at the time that California, Moderna, Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) are investigating.
On a statement on Tuesday, Moderna said he “acknowledges having received a report from the California Department of Public Health (CDPH) that several individuals at a vaccination center in San Diego have been treated for possible allergic reactions after vaccination” from the lot.
The company said it was unaware of “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 wide pause in using the lot is warranted,” said the company.
The company did not specify on Sunday exactly how many people reported adverse reactions. However, The Associated Press previously reported that six health professionals in San Diego had allergic reactions to the vaccines they received at a vaccination center on Thursday.
An FDA spokesman told The Hill in a statement that the agency is “aware of a situation in California in which several potential adverse events have been reported following vaccination with a specific lot of Moderna vaccine (Moderna Lot 041L20A) at a clinic of community vaccination. We are working closely with the CDC, the California Department of Public Health and Moderna to investigate these potential adverse events. ”
“At the moment, the CDC and the FDA do not recommend that health departments stop administering this batch or any batch of Moderna’s COVID-19 vaccine,” said Hunt.
The Hill contacted the CDC for comment.
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. CDPH said it received 330,000 doses of the batch that was distributed to 287 providers.
Updated at 17h04