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West Nile Virus and Other Domestic Nationally Notifiable Arboviral Diseases — United States, 2018
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August 09 2019
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Source: MMWR Morbidity Mortal Weekly Rep. 68(31):673-678
[PDF-208.66 KB]
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Description:Arthropodborne 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 continental United States (1). Other arboViruses, including eastern equine encephalitis, Jamestown Canyon, La Crosse, Powassan, and St. Louis encephalitis Viruses, cause sporadic cases of disease and occasional outbreaks. This report summarizes Surveillance data reported to CDC for 2018 on nationally notifiable arboViruses. It excludes dengue, chikungunya, and Zika Viruses because they are primarily nondomestic Viruses typically acquired through travel. In 2018, 48 states and the District of Columbia (DC) reported 2,813 cases of domestic arboviral disease, including 2,647 (94%) WNV disease cases. Of the WNV disease cases, 1,658 (63%) were classified as neuroinvasive disease (e.g., meningitis, encephalitis, and acute flaccid paralysis), for a national incidence of 0.51 cases of WNV neuroinvasive disease per 100,000 population. Because arboviral Diseases continue to cause serious illness and have no definitive treatment, maintaining Surveillance is important to direct and promote Prevention activities. Health care providers should consider arboviral infections in patients with aseptic meningitis or encephalitis, perform appropriate diagnostic tTesting, and report cases to public health authorities.
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Pages in Document:6 pdf pages
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Volume:68
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Issue:31
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