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{{Norovirus infection}}
{{Norovirus infection}}


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==Overview==
Noroviruses are transmitted directly via person to person or indirectly via contaminated water and foods. A [[Centers for Disease Control and Prevention|CDC]] study of eleven outbreaks in [[New York|New York State]] lists  the suspected [[Transmission (medicine)|mode of transmission]] as person-to-person in seven outbreaks, foodborne in two, waterborne in one, and one unknown. The source of waterborne outbreaks may include water from municipal supplies, wells, recreational lakes, swimming pools and ice machines. <ref name="pmid8395330">{{cite journal
|author=Hedberg CW, Osterholm MT
|title=Outbreaks of food-borne and waterborne viral gastroenteritis
|journal=Clin. Microbiol. Rev.
|volume=6
|issue=3
|pages=199–210
|year=1993
|pmid=8395330
|doi=
|url=http://cmr.asm.org/cgi/pmidlookup?view=long&pmid=8395330
|issn=
}}</ref>
 
[[Shellfish]] and [[salad]] ingredients are the foods most often implicated in Norwalk outbreaks. Ingestion of raw or insufficiently steamed [[clam]]s and [[oyster]]s poses a high risk for infection with the Norwalk virus. Foods other than shellfish are contaminated by ill food handlers.<ref name="pmid11479930">{{cite journal
|author=Parashar UD, Monroe SS
|title="Norwalk-like viruses" as a cause of foodborne disease outbreaks
|journal=Rev. Med. Virol.
|volume=11
|issue=4
|pages=243–52
|year=2001
|pmid=11479930
|doi=10.1002/rmv.321
|issn=
}}</ref>


== References ==
== References ==

Revision as of 16:49, 17 December 2012

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Overview

Noroviruses are transmitted directly via person to person or indirectly via contaminated water and foods. A CDC study of eleven outbreaks in New York State lists the suspected mode of transmission as person-to-person in seven outbreaks, foodborne in two, waterborne in one, and one unknown. The source of waterborne outbreaks may include water from municipal supplies, wells, recreational lakes, swimming pools and ice machines. [1]

Shellfish and salad ingredients are the foods most often implicated in Norwalk outbreaks. Ingestion of raw or insufficiently steamed clams and oysters poses a high risk for infection with the Norwalk virus. Foods other than shellfish are contaminated by ill food handlers.[2]

References

  1. Hedberg CW, Osterholm MT (1993). "Outbreaks of food-borne and waterborne viral gastroenteritis". Clin. Microbiol. Rev. 6 (3): 199–210. PMID 8395330.
  2. Parashar UD, Monroe SS (2001). ""Norwalk-like viruses" as a cause of foodborne disease outbreaks". Rev. Med. Virol. 11 (4): 243–52. doi:10.1002/rmv.321. PMID 11479930.


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