exactly a dozen men have reported becoming hungry after consumption contaminated oysters consumed in a restaurant in chattanooga , tennessee . the chattanooga - hamilton county healthcare system and the department of health confirmed that the victims were infected with norovirus . norovirus is a foodborne condition that can lead serious gastroenteritis in humans . the symptoms of norovirus infections began suddenly , most often in 24 to 48 time after inhaling of the virus , but they can peak as late as 12 hours after exposure . the gastrointestinal symptoms include nausea , anxiety , diarrhea , and some stomach cramping .
Oysters have been linked to gastrointestinal diseases caused by a virus.