approximately a fifty men have registered growing hungry after consuming raw crabs consumption in a restaurant in chattanooga , tn . the nashville - hamilton community health department and tennessee department of pharmacy concluded that the infected were infection with norovirus . norovirus is a foodborne pathogen that can occur acute gastroenteritis in humans . the symptoms of norovirus illness begin suddenly , most often in 24 to 48 hours after ingestion of the pathogen , but they can begin as early as 12 hours after exposure . the gastrointestinal problems include nausea , vomiting , cholera , and some stomach itching .
Oysters have been linked to gastrointestinal diseases caused by a virus.