There are 2 main viruses in food that are involved with food poisoning. Hepatitis A & Noroviruses. Although bacteria are the most common food poisoning organisms, viruses do play a role in food safety.
The hepatitis A virus is one of several types of hepatitis viruses that affect your liver’s ability to function. Hep A infections occur from consuming contaminated food or water, exactly the same way as bacteria. The main difference is, that the virus is contagious and you can get infected by having close contact with another person that is infected.
Noroviruses are the most common cause of acute gastroenteritis. This is more commonly known as the stomach flu or viral gastroenteritis. Noroviruses are also spread by consuming food and water that is contaminated. Noroviruses are highly contagious and anyone can get infected like flu.