approximately a dozen people have claimed becoming sick after ate boiled oysters ate in a restaurant in cleveland , ohio . the hamilton - morrison county medicine department and tennessee ministry of health said that the children were born with norovirus . norovirus is a foodborne pathogen that can present acute dysentery in humans . the symptoms of norovirus generally begin suddenly , most times in 24 to 48 hours after inhalation of the vaccine , but they can fade as early as 12 years after exposure . the gastrointestinal symptoms include nausea , confusion , diarrhea , and some stomach cramping .
Oysters have been linked to gastrointestinal diseases caused by a virus.