Complaints of nausea, vomiting, and diarrhea began on November 30th among patrons of the 42nd Street Oyster Bar in Raleigh, North Carolina. At least three of the illnesses were laboratory confirmed as caused by Norovirus. Although oysters originating from Louisiana were initially suspected as the outbreak vehicle, laboratory testing of the oysters failed to show contamination with norovirus. Stool was collected from food workers for laboratory testing; these failed to show the presence of norovirus.