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. 2014 Jun 20;63(24):521-6.

West nile virus and other arboviral diseases - United States, 2013

Nicole P Lindsey, Jennifer A Lehman, J Erin Staples, Marc Fischer; Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, CDC

West nile virus and other arboviral diseases - United States, 2013

Nicole P Lindsey et al. 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 (i.e., meningitis, encephalitis, and acute flaccid paralysis). This report summarizes surveillance data reported to CDC in 2013 for WNV and other nationally notifiable arboviruses, excluding dengue. Forty-seven states and the District of Columbia reported 2,469 cases of WNV disease. Of these, 1,267 (51%) were classified as WNV neuroinvasive disease, for a national incidence of 0.40 per 100,000 population. After WNV, the next most commonly reported cause of arboviral disease was La Crosse virus (LACV) (85 cases), followed by Jamestown Canyon virus (JCV), Powassan virus (POWV), and eastern equine encephalitis virus (EEEV) (eight). WNV and other arboviruses continue to cause serious illness in substantial numbers of persons annually. Maintaining surveillance remains important to help direct and promote prevention activities.

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Figures

FIGURE
FIGURE
Incidence* of reported cases of West Nile virus neuroinvasive disease, by state — United States, 2013 * Per 100,000 population, based on July 1, 2013 U.S. Census population estimates.
See this image and copyright information in PMC

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