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West Nile Virus
Human
2011
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West Nile Virus:  USA - Human
Washington Washington Washington Montana Maine Maine North Dakota South Dakota Wyoming Wisconsin Wisconsin Idaho Vermont Minnesota Oregon New Hampshire Iowa Massachusetts Massachusetts Massachusetts Nebraska New York New York New York New York Pennsylvania Connecticut Rhode Island Rhode Island Rhode Island New Jersey Indiana Nevada Utah California California California California California Ohio Illinois District of Columbia Delaware West Virginia Maryland Maryland Maryland Maryland Colorado Kentucky Kentucky Kansas Virginia Virginia Virginia Missouri Arizona Oklahoma North Carolina North Carolina North Carolina North Carolina North Carolina North Carolina Tennessee Texas Texas Texas Texas Texas Texas New Mexico Alabama Mississippi Georgia Georgia South Carolina South Carolina Arkansas Louisiana Louisiana Louisiana Louisiana Florida Florida Florida Florida Florida Florida Florida Michigan Michigan Michigan Michigan Michigan
Map Scalebar 1000000 m
Cumulative 2011 Data as of 3 am, Dec 14, 2011*
These data are provisional and may be revised or adjusted in the future.
Alabama5
Arizona58
Arkansas1
California154
Colorado7
Connecticut9
Delaware1
District of Columbia4
Florida23
Georgia12
Idaho2
Illinois34
Indiana9
Iowa9
Kansas4
Kentucky5
Louisiana10
Maryland20
Massachusetts5
Michigan33
Minnesota2
Mississippi52
Missouri10
Montana1
Nebraska28
Nevada16
New Jersey7
New Mexico4
New York43
North Carolina2
North Dakota4
Ohio21
Pennsylvania6
Rhode Island1
South Dakota2
Tennessee18
Texas26
Utah3
Vermont1
Virginia8
West Virginia1
Wisconsin3
Wyoming3
Cumulative Total Entire Country: 667
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Map Legend
* Data demonstrates local jurisdiction of residence and not necessarily the locale where the infection was acquired.
** States and counties in yellow are those in which virus activity has been reported historically, but no positive test results have been reported or no surveillance has occurred this year.