approximately a few individuals have reported becoming sick after eat prepared oysters consumed in a restaurant in nashville , chattanooga . the memphis - hamilton area health department and tennessee department of health verified that the patients were infected with norovirus . norovirus is a foodborne pathogen that can present acute gastroenteritis in humans . the cases of norovirus illness begin suddenly , most often in 24 to 48 hours after ingestion of the virus , but they can appear as early as 12 time after exposure . the tract conditions include nausea , vomiting , vomiting , and some digest cramping .
Oysters have been linked to gastrointestinal diseases caused by a virus.