approximately a dozen individuals have reported becoming sick after ordering raw oysters consumed in a restaurant in chattanooga , virginia . the tennessee - hamilton county state authority and missouri department of pharmacy confirmed that the patients were sick with norovirus . norovirus is a foodborne pathogen that can occur acute gastroenteritis in men . the symptoms of norovirus illness develop suddenly , most typically in 24 to 48 hours after ingestion of the viral , but they can appear as early as 12 hours after exposure . the gastrointestinal sensations comprise nausea , vomiting , symptoms , and some stomach aches .
Oysters have been linked to gastrointestinal diseases caused by a virus.