About Norovirus
Norovirus is a highly contagious virus that causes acute gastroenteritis, marked by vomiting and diarrhea. The virus spreads easily and quickly, both from infected people to others and through contaminated foods and surfaces. An outbreak of is defined as the occurrence of two or more norovirus illnesses resulting from a common exposure. Healthcare, including long-term care facilities and hospitals, represents a common setting for norovirus outbreaks.