Norovirus

Noroviruses are a group of very contagious viruses that cause stomach illness.

People of all ages can get sick with norovirus by accidentally consuming small amounts of poop or vomit from an infected person.

Common symptoms of norovirus include vomiting, diarrhea, and stomach cramps. Norovirus is also called gastroenteritis or the “stomach flu.”

Although it is commonly called the stomach flu, norovirus is not related to the flu (influenza). Norovirus is the leading cause of foodborne illness outbreaks in Wisconsin.

Norovirus 101

Information for providers


Questions about Norovirus? Contact us!

Phone: 608-267-9003 | Fax: 608-261-4976

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Last revised January 29, 2025