Specific lot of Moderna COVID-19 vaccine paused in California after several allergic reactions

Doses from the impacted lot were received locally
Moderna Vaccine
Posted at 7:13 AM, Jan 18, 2021
and last updated 2021-01-18 20:47:18-05

California health officials are putting a pause on administering a specific lot of the Moderna COVID-19 vaccine after reports of possible allergic reactions around the state, including six in San Diego.

In a statement, state epidemiologist Dr. Erica Pan recommended pausing lot 41L20A of the vaccine as officials investigate the reported reactions.

"Our goal is to provide the COVID vaccine safely, swiftly and equitably. A higher-than-usual number of possible allergic reactions were reported with a specific lot of Moderna vaccine administered at one community vaccination clinic. Fewer than 10 individuals required medical attention over the span of 24 hours," Pan said.

Pan added that the state was pausing the vaccines in the lot "out of an extreme abundance of caution" until an investigation by the CDC, FDA, Moderna and the state is complete.

While the state did not reveal the location where the reactions were reported, six people reported allergic reactions after receiving the vaccine at the vaccine super station at Petco Park on Jan. 14. The site was briefly closed following the reports but has since reopened, as other vaccine bathes were available to be administered.

Between Jan. 5-12, Department of Public Health officials said over 330,000 doses from the specific Moderna lot were distributed to 287 providers across California.

San Luis Obispo County Public Health tells KSBY News it has received some of the doses from the Moderna vaccine lot, but had not yet administered any of them before learning of the potential issue.

“We await further direction from the manufacturer and State and will not be administering any doses from that lot number without further direction,” the health department said.

Santa Barbara County says it also received a shipment from the impacted Moderna lot but did not administer any of the doses.

Health officials say an investigation is underway to determine whether other local health care providers received vaccines from the 41L20A lot and if so, whether they were administered.

The pause on the lot is in place until an investigation conducted by the CDC, FDA, Moderna, and state health officials is complete.

This story was originally published by Jermaine Ong on KGTV in San Diego.