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West Nile Virus

West Nile Virus was first isolated from a patient in the West Nile district of Uganda in 1937. Several outbreaks of WNV occurred in the Mediterranean Basin (an area stretching from Portugal to Jordan and Italy to Cape Verde) in the 1950s and 1960s. The United States' first WNV cases occurred in New York in 1999. North Dakota's first case occurred in August, 2002.

Current Data

 

2017 West Nile Virus Samples and Testing
Beginning: Thursday, June 1, 2017
Through: Thursday, June 22, 2017
 Positive to Date* †Nationwide Positive°
Humans00
Horses00
Dead Birds00
Mosquito Pools00
Other Veterinary00

* Results may change pending further investigation
† Confirmed and probable cases
° Reported to CDC

   
2017 WNV Human Summary
Total CasesAge Information
RangeCases
Gender<100
Female010-190
Male020-290
30-390
Hospitalized040-490
50-590
Active Counties   0  60 and over0

Click here for data by county

Historical Data