Norovirus cases reported in San Diego County linked to frozen oysters

SAN DIEGO (FOX 5/KUSI) -- Eleven confirmed and probable cases of norovirus reported in San Diego County have been linked to frozen oysters, county health officials said Tuesday.

According to a release from the County of San Diego, the frozen oysters were imported from South Korea and norovirus was found in people who consumed them at 100s Seafood Grill Buffet in Mission Valley between March 31 and April 1.

Of the customers who ate at this restaurant, one person went to the emergency room, officials said.

The U.S. Food and Drug Administration said the cases of norovirus are linked to quick-frozen oysters. It's now urging all restaurants and stores that sell frozen, raw half-shell oysters to check their freezers for specific information regarding their origin.

The warning applies to oysters processed by JBR (KR 15 SP) in Tongyeongsi, Republic of Korea on Nov. 27, 2023 as well as this past Jan. 4 and Feb. 15.

The release by the county said the oysters may be labeled "Amazing Sea Brand."

Symptoms of the virus include nausea, vomiting, diarrhea and stomach cramps. Fever and body aches may also develop. The symptoms usually show up 12 to 48 hours after consuming contaminated foods, health officials said.

If you think you got sick from consuming the oysters either from dining out or buying them from wholesale food locations, you're asked to call 858-505-6814 or email fhdepi@sdcounty.ca.gov. You can also find more information regarding seafood and shellfish safety on the California Department of Public Health's website.