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Norovirus Infection

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by Stahl RJ

(Acute Nonbacterial Gastroenteritis; Caliciviruses; Food Infection; Norwalk Virus; Norwalk-like Virus; Small Round Structure Viruses [SMRVs]; Stomach Flu; Viral Gastroenteritis)

 

Symptoms

If you have any of these do not assume it is due to norovirus. These may be caused by other health conditions. Symptoms may include:
Symptoms often appear within 24-48 hours of exposure to the virus. Symptoms often last about 24-60 hours.
 

Prevention

To help reduce your chance of getting or passing noroviruses take the following steps:
  • Wash your hands thoroughly with soap and water:
    • After using the bathroom
    • After changing diapers
    • Before preparing or eating food.
  • If you are caring for someone who is infected, make sure the person thoroughly washes his or her hands.
  • If you are ill or caring for someone who is ill, immediately clean and disinfect contaminated surfaces using bleach cleaner. Remove and wash soiled linens. Use hot water and soap.
  • Wash fruits and vegetables.
  • Cook oysters and clams before eating them.
  • Do not prepare food if you have symptoms. Wait three days after you have recovered before handling food again.
  • Throw away contaminated food.
  • If you are sick, do not attend work until symptoms have passed.
 

RESOURCES

Centers for Disease Control and Prevention
http://www.cdc.gov

National Institute of Allergies and Infectious Diseases
http://www3.niaid.nih.gov

 

CANADIAN RESOURCES

Communicable Disease Control Unit
http://www.gov.mb.ca

Health Canada
http://www.hc-sc.gc.ca

 

References


Norovirus. Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/norovirus/about/overview.html . Updated April 12, 2012. Accessed February 20, 2013.


Norovirus infection. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what . Updated January 25, 2013. Accessed February 20, 2013.


Norovirus illness: Key facts: Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/norovirus/downloads/keyfacts.pdf . Accessed February 20, 2013.


Phillips G, Tam CC, Rodrigues LC, Lopman B. Risk factors for symptomatic and asymptomatic norovirus infection in the community. Epidemiol Infect . 2010 Dec 17:1-11.


Scallan E, Hoekstra RM, Angulo FJ, Tauxe RV, Widdowson MA, Roy SL, Jones JL, Griffin PM. Foodborne illness acquired in the United States-major pathogens. Emerg Infect Dis . 2011 Jan;17(1):7-15.

 

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