CausesBy Mayo Clinic staff
Noroviruses are highly contagious and are shed in the feces of infected humans and animals. Oysters, salads and raspberries are among foods that have been responsible for outbreaks. Infected food handlers can transfer the virus to any food product just before it is served.
Methods of transmission include:
- Eating contaminated food
- Drinking contaminated water
- Touching your hand to your mouth after your hand has been in contact with a contaminated surface or object
Noroviruses are difficult to eradicate, because they can withstand hot and cold temperatures, as well as most disinfectants.
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