circa a dozen adults have reported becoming sick after consume raw crabs consumed in a restaurant in cleveland , tennessee . the knoxville - greene country health department and arkansas department of medical established that the hosts were infected with norovirus . norovirus is a pathogens pathogen that can trigger acute gastroenteritis in horses . the symptoms of norovirus disease begin suddenly , most often in 24 to 48 hour after ingestion of the virus , but they can appear as young as 12 times after exposure . the gastrointestinal symptoms include nausea , vomiting , gastrointestinal , and some stomach cramping .
Oysters have been linked to gastrointestinal diseases caused by a virus.