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. 2013 Jun 28;62(25):513-7.

West Nile virus and other arboviral diseases--United States, 2012

Centers for Disease Control and Prevention (CDC)

West Nile virus and other arboviral diseases--United States, 2012

Centers for Disease Control and Prevention (CDC). MMWR Morb Mortal Wkly Rep. .

Abstract

Arthropod-borne viruses (arboviruses) are transmitted to humans primarily through the bites of infected mosquitoes and ticks. West Nile virus (WNV) is the leading cause of domestically acquired arboviral disease in the United States. However, several other arboviruses also cause sporadic cases and seasonal outbreaks of neuroinvasive disease (e.g., meningitis, encephalitis, and acute flaccid paralysis). In 2012, CDC received reports of 5,780 nationally notifiable arboviral disease cases (excluding dengue). A large multistate outbreak of WNV disease accounted for 5,674 (98%) of reported cases, the highest number reported since 2003. Other reported etiologies included Eastern equine encephalitis virus (EEEV), Powassan virus (POWV), St. Louis encephalitis virus (SLEV), and California serogroup viruses such as La Crosse virus (LACV) and Jamestown Canyon virus (JCV). Arboviruses continue to cause serious illness in substantial numbers of persons in the United States. Maintaining surveillance remains important to identify outbreaks and guide prevention efforts.

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Figures

FIGURE
FIGURE
Rate* of reported cases of West Nile virus neuroinvasive disease, by state — United States, 2012 * Per 100,000 population, based on July 1, 2012 U.S. Census population estimates.
See this image and copyright information in PMC

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