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Norovirus

What is Norovirus?

Many refer to norovirus as “the stomach flu.” However, norovirus illness is not related to the flu. The flu is caused by the influenza virus. Norovirus causes acute gastroenteritis, an inflammation of the stomach or intestines.It’s the leading cause of outbreaks of diarrhea and vomiting in the U.S. The virus can spread quickly through homes, schools, healthcare facilities, sports teams, child care centers and nursing homes. Each year, there are about 2,500 reported norovirus outbreaks in the United States. Norovirus is responsible for nearly 1 million pediatric medical care visits annually. Most people with norovirus illness get better within 1 to 3 days; but they can still spread the virus for 2 weeks or more after you feel better.

There is no vaccine to prevent norovirus, but understanding how it spreads can go a long way to avoiding it. Most outbreaks occur when infected people spread the virus to others through direct contact (such as caring for them, sharing food, or eating utensils with them). Therefore, handwashing is an important action for preventing or limiting the spread of norovirus. The use of hand sanitizer is ineffective against the norovirus germ. Schools which suspect an outbreak, or experience increased cases of students or staff with vomiting and diarrhea, should contact their local or tribal public health department.

For questions about this information, contact Louise Wilson (608) 266-8857