The Norovirus ( food poisoning )
The Norovirus is any of various single-stranded RNA viruses compromising the Norwalk virus, which can cause acute gastroenteritis in humans.
Noroviruses are a group of viruses that cause inflammation of the stomach. Noroviruses are sometimes called food poisoning, because they can be transmitted through food that's been contaminated with the virus. People become infected with noroviruses when they eat food or drink liquids that have been contaminated; raw or undercooked oysters and raw fruits and vegetables have been implicated in some outbreaks.Typical symptoms include nausea, vomiting (more often in children), watery diarrhea (more often in adults), and stomach cramps.