West Nile Virus
West Nile virus (WNV), which has been widespread in Africa, southern
Europe, the Middle East and western Asia, first appeared in the New York
City area of the United States in 1999. The disease spread west quickly
and was found in Wisconsin for the first time in 2001 in infected wild
birds. The first human cases of disease from WNV in Wisconsin
appeared in 2002.
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WNV is an arbovirus (arthropod-borne virus) transmitted to birds and
mammals by the bite of an infected mosquito.
Very few mosquitoes actually carry
the virus. In nature, the virus cycles between birds and mosquitoes but
can infect humans and domestic animals, such as horses.
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2007
Summary Data of WNV
positive cases in Wisconsin
Updated
February 29, 2008 |
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Avian (bird)
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47
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Equine (horse)
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17
|
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Human
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12
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Counties Reporting WNV Activity
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36
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For more information go to
the
Surveillance Map |
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Dead Bird Reporting
Hotline
800-433-1610
For information regarding
West Nile virus in Wisconsin contact
Diep
Hoang Johnson
608-267-9000
Last Revised: April 02, 2008
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