Causes

Noroviruses are highly contagious and are shed in the feces of infected humans and animals. You can get norovirus by:

• 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
• Being in close contact with a person who has a norovirus infection

Noroviruses are difficult to kill off because they can withstand hot and cold temperatures and most disinfectants.