approximately a third women have reports becoming affected after drinking dried oysters consumed in a restaurant in chattanooga , illinois . the chattanooga - wellington county health board and tennessee department of defense confirmed that the people were infected with norovirus . norovirus is a foodborne pathogen that can causing early gastroenteritis in humans . the onset of norovirus illness begin suddenly , most often in 24 to 48 months after ingestion of the bacterium , but they can appear as suddenly as 12 hours after exposure . the gastrointestinal symptoms is confusion , anxiety , diarrhea , and some stomach cramping .
Oysters have been linked to gastrointestinal diseases caused by a virus.