Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home
Share
Compartir

Surveillance of Norovirus Outbreaks

<< Back

 From January 2009 through December 2010, acute gastroenteritis (AGE) outbreaks exhibited winter seasonality: 68% (2,972 of 4,376) of AGE outbreaks occurred during November–April. 80% (1,530 of 1,908) of outbreaks caused by norovirus and 71% (1,086 of 1,524) caused by unknown etiologies occurred during November–April. 

Number of reported acute gastroenteritis outbreaks by month of first illness onset and etiology, National Outbreak Reporting System, United States, 2009-2010.

*Includes outbreaks caused by a single etiologic agent other than norovirus or multiple etiologies.
Image courtesy of Hall AJ, Wikswo ME, Manikonda K, Roberts VA, Yoder JS, Gould LH. Acute Gastroenteritis Surveillance through the National Outbreak Reporting System, United States. EID Journal. Aug 2013; 19(3).

 

CDC 24/7 - Saving Lives. Protecting People.
Contact Us:
  • Centers for Disease Control and Prevention
    1600 Clifton Rd
    Atlanta, GA 30333
  • 800-CDC-INFO
    (800-232-4636)
    TTY: (888) 232-6348
  • Contact CDC-INFO
  • Page last reviewed: September 26, 2013
  • Page last updated: September 26, 2013
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC-INFO