Raw oysters are a familiar fall treat. Virginia's new season opened on October 1, 2026, and plates up and down the East Coast are filling up with shells on ice again. For some diners this year, the appetizer became the problem.
On October 9, 2026, the Virginia Department of Health closed the Little Wicomico River in Northumberland County to oyster and clam harvesting.
At least five people have been sickened in a Pennsylvania Salmonella outbreak that epidemiologists traced back to oysters pulled from that water.
The closure runs through November 7, 2026, covering the peak of oyster season. Testing of shellfish in the affected area is underway. Crabs and finfish from the river can still be harvested.
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The move was made in conformance with recommendations from the U.S. Food and Drug Administration, the state health department said. On the same day, VDH closed a portion of Lower Machodoc Creek in Westmoreland County through October 29, for a separate reason, a sewage release.
Why filter feeders can carry Salmonella
Oysters and clams are bivalve mollusks that feed by pulling large volumes of seawater through their bodies and filtering out food. The process also concentrates whatever else is in the water. Bacteria from sewage runoff or farm pollution can build up inside the shellfish.
Cooking usually kills the germs. Raw and lightly cooked oysters skip that step, which is why outbreaks tend to involve the raw bar rather than steamed or baked dishes.
Symptoms to watch for after eating raw oysters
According to the Centers for Disease Control and Prevention, Salmonella symptoms usually begin 6 hours to 6 days after exposure. The most common signs are diarrhea that may be bloody, stomach cramps, fever and vomiting.
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Most healthy adults get better within a week without specific treatment.
The CDC advises calling a doctor for bloody diarrhea, diarrhea that lasts more than three days, a fever above 102°F, or vomiting that keeps you from holding down liquids. Young children, older adults, pregnant women and people with weakened immune systems can get much sicker.
Steps to take if you ate oysters recently
If you ate raw oysters in the past two weeks and feel ill, mention that exposure when you call your doctor. Note the name of the restaurant or market where you bought them if you can. That detail helps investigators follow the trail back to a harvest area.
Restaurants and retailers that bought shellfish during the brief open window should check their invoices against the Little Wicomico River closure dates. Any product from the condemned waters should be pulled.
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Virginia's emergency order makes it illegal to harvest, store or transport shellfish from the closed stretch of the Little Wicomico River through November 7. A special permit from the state's Marine Resources Commission is required for any such activity.
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This article is made and published by Aksel Kryhlmand, who may have used AI in the preparation.