Noroviruses are a group of viruses that cause acute gastroenteritis in humans. The symptoms of norovirus infection include nausea, vomiting, diarrhea, cramping, and low-grade fever. Noroviruses are transmitted through the fecal-oral route, either by consumption of fecally contaminated food or water, direct person-to-person spread, or environmental and fomite (inanimate object or substance that is capable of transmitting infectious organisms) contamination.

A February 5, 2010 story in AnnArbor.com reports that norovirus is spreading in Washtenaw County.

http://www.annarbor.com/news/norovirus-circulating-washtenaw-county-officials-say/

This documents contains guidelines for environmental cleaning and disinfection to prevent or following a norovirus update. It is prepared by the Michigan Department of Community Health, and was last updated 1/5/09.

                     Updated 01/05/09

Contact information: brennanb@michigan.gov MDCH Bureau of Epidemiology (517) 335-8165

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