California’s chief epidemiologist is urging doctors and nurses to delay using a batch of Moderna COVID-19 vaccine after “more than usual” cases of allergic reactions were reported at a Southern California clinic.
The batch includes 330,000 doses – about 1/10th of what the state has distributed so far. Fewer than 10 people had reactions and required medical attention after being vaccinated at one clinic, said state epidemiologist Dr. Erica S. Pan. The condition of the victims was not disclosed, but health officials described the allergic reaction as “severe.” As the California Department of Public Health later reported, the clinic is located in San Diego.
“Because of overcautiousness, and because of the extremely limited supply of vaccine, we recommend that providers use other available vaccines and suspend administration of vaccines from Moderna Lot 041L20A pending investigation by the CDC,” the statement said.
Officials said more than 330,000 doses of the affected lot, which arrived in California between Jan. 5 and 12, were given to 287 suppliers across the state. No other adverse reactions were reported in that particular shipment.