SFDPH-Control-of-norovirus-for-first-responders.Feb2011-id192.doc - City and County of San Francisco San Francisco Department of Public Health


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City and County of San Francisco San Francisco Department of Public Health Communicable Disease Control and Prevention Section 101 Grove Street, Suite 408 San Francisco, CA 94102 Tel: (415) 554-2830 Fax: (415) 554-2848 Recommendations for Control of Norovirus for First Responders Updated 12/18/08 The San Francisco Department of Public Health has adapted information from the California Department of Health Services and the Centers for Disease Control and Prevention in development of these recommendations. Noroviruses, formerly referred to as “Norwalk-like viruses”, are part of a family of viruses called caliciviruses. Infection with a norovirus can cause acute gastroenteritis characterized by diarrhea, abdominal cramps, nausea and vomiting. Norovirus illness has an incubation period of 12 to 48 hours and a duration of 12 to 60 hours. Elderly and immunocompromised patients may be sick longer. Treatment of norovirus infection is supportive consisting of maintenance of hydration and rest. Noroviruses are spread primarily through contact and ingestion of an infected person’s stool or vomitus. Although “airborne” transmission has sometimes been described, this is really contact with particles of vomitus that have been propelled long distances by someone with vigorous (often projectile) vomiting; or, contact with re-aerosolized particles of vomit or feces after flushing a toilet.
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