Salmonella Oyster Outbreak Hits 28 in 13 States: Check Your Freezer

A multistate Salmonella outbreak linked to raw oysters harvested from Virginia’s Little Wicomico River has now sickened 28 people in 13 states, federal health officials said in their latest update, with five people hospitalised and no deaths reported.

The Centers for Disease Control and Prevention (CDC) said the illnesses are tied to oysters harvested by the Little Wicomico Oyster Company from the Little Wicomico River harvest area. The case count rose by one from the agency’s earlier tally of 27, adding Indiana as a newly affected state. Illnesses began between May 29 and October 6, 2026, and patients range in age from 1 to 86 years old.

Pennsylvania has reported the most cases, with eight, followed by New York with four and Virginia with three. Colorado, Indiana and Maryland have each reported two cases, while Connecticut, Florida, Iowa, Illinois, Kentucky, Michigan and New Jersey have each reported one.

Health officials say the pattern points strongly to raw oysters as the vehicle. Of 14 patients interviewed about what they ate in the week before falling ill, 11 — about 79 percent — said they had eaten raw oysters. That compares with just 1.6 percent of respondents in a national food survey who reported eating oysters, a gap investigators say is far too large to be coincidence.

How investigators linked the oysters to the outbreak

The investigation combined patient interviews, laboratory testing and traceback records — the paper trail that follows a food product from harvest to restaurant or store. Whole genome sequencing, which compares the DNA fingerprints of bacteria from patients, showed the illnesses were closely related genetically, indicating the patients likely ate the same contaminated food.

Virginia health officials collected oysters from the river on October 13 and again on October 21. Some samples tested positive for Salmonella, and sequencing showed that at least some carried the same Salmonella Telelkebir strain found in patients. Other Salmonella strains, including Newport and Hartford, were also found in the samples, and a separate strain, Salmonella Litchfield, was identified in oysters collected in Pennsylvania from a distributor that sold the company’s product. Those other strains did not match any patients in the CDC’s PulseNet database, which tracks foodborne illness across the country.

Traceback information was available for seven patients who ate raw oysters, and the Little Wicomico oysters were the only oysters those patients had in common, according to the Virginia Department of Health. The department said raw oysters from the single harvest area are the likely source of illness in that group, while cautioning that it is not yet confirmed that every one of the 28 patients fell ill from the recalled oysters. The investigation is ongoing, and officials say additional cases beyond the closely related genomic subgroup are also being examined.

Which oysters were recalled

The company voluntarily recalled shellstock oysters on October 9, and Virginia authorities temporarily closed the affected harvest area the same day. The recall covers whole shell oysters from the Little Wicomico Oyster Company, code VA-1421-SP, harvested between September 18 and October 8, 2026, from the Little Wicomico River and Little Wicomico River Lower zones.

The U.S. Food and Drug Administration (FDA) said the oysters were distributed to restaurants and retailers in California, Colorado, Connecticut, Delaware, Florida, Georgia, Illinois, Maryland, Missouri, North Carolina, New Jersey, Nevada, New York, Pennsylvania, Texas and Virginia, as well as Washington, D.C., and may have been distributed further. The FDA notes that the recalled oysters have now passed their shelf life and should no longer be on sale — but that does not end the risk for anyone who froze them at home.

“If you froze these raw oysters for later use, do not eat them, since freezing does not destroy this pathogen,” federal guidance says. Cooking the recalled oysters is also not recommended; the advice is to discard them or return them. No oysters are currently being harvested from the affected area, and Virginia officials say reopening it will require three consecutive rounds of testing with negative results.

Salmonella symptoms and when to seek care

Salmonella infection, or salmonellosis, most often causes diarrhea, fever and stomach cramps. Symptoms usually begin 6 hours to 6 days after infection and typically last 4 to 7 days, according to the CDC. Most people recover without specific treatment, but some — particularly young children, adults over 65 and people with weakened immune systems — can develop more severe illness that requires hospital care.

Anyone who ate raw oysters from the company and then became ill should contact a health care provider, officials say, because they may be part of the outbreak and their case could help investigators trace the contamination further. Seek care promptly for signs of dehydration, bloody diarrhea, a fever above 102 degrees Fahrenheit, or diarrhea lasting more than three days.

The outbreak is a reminder of a long-standing food safety warning: raw oysters can carry bacteria and viruses that cooking destroys. People at higher risk of severe illness are advised to eat only oysters that have been fully cooked. For everyone else, the current message is narrower and more urgent — check the harvest source and dates, and if the oysters match this recall, throw them out.

What happens next

Investigators are continuing to interview patients, test oyster samples and review distribution records. Virginia officials have not yet posted results for some later rounds of sampling, including oysters collected October 22 for fecal contamination testing and samples taken from public harvest grounds on October 26. Until the harvest area clears three consecutive rounds of negative tests, it will stay closed.

For consumers, the practical steps have not changed since the FDA and CDC issued their warnings on October 19: do not buy, sell or serve the recalled oysters; check any frozen oyster meat at home against the recall details; and discard anything that matches. Restaurants and retailers that received the product were told to dispose of it and to clean and sanitise any surfaces or containers that held it.

The outbreak, while small compared with some national foodborne events, illustrates how a single harvest area can reach tables across the country within days — and why a single new case, in a new state, can still matter weeks after the first illnesses were reported.

Frequently Asked Questions

How many people have been sickened in the Salmonella oyster outbreak?
As of the CDC’s October 30 update, 28 people in 13 states have been counted in the outbreak, with five hospitalised and no deaths reported. Illness onset dates range from May 29 to October 6, 2026.

Which oysters are part of the recall?
Whole shell oysters from the Little Wicomico Oyster Company, code VA-1421-SP, harvested September 18 to October 8, 2026, from the Little Wicomico River and Little Wicomico River Lower zones in Virginia.

Can I eat the recalled oysters if I cook them or froze them?
No. Federal guidance says do not eat recalled oysters, including frozen stock — freezing does not destroy Salmonella. Discard them or return them.

What are the symptoms of Salmonella infection?
Diarrhea, fever and stomach cramps, usually starting 6 hours to 6 days after infection and lasting 4 to 7 days. Seek care for dehydration, bloody diarrhea, high fever or symptoms lasting more than three days.

Is the harvest area still closed?
Yes. No oysters are being harvested from the affected area, and Virginia says reopening requires three consecutive rounds of negative test results.

Sources: Centers for Disease Control and Prevention, U.S. Food and Drug Administration, Food Poisoning Bulletin, CubaHeadlines / Virginia Department of Health reporting, eFoodAlert