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West Nile Virus

West Nile virus (WNV) 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 was reported in August 2002. Human cases have been reported in the state every year since then.

WNV Human Cases by County, North Dakota, 2017

Current Data

 

2017 West Nile Virus Samples and Testing
Beginning: Thursday, June 1, 2017
Through: Friday, July 28, 2017
 Positive to Date* †Nationwide Positive°
Humans567
Horses00
Dead Birds40
Mosquito Pools50
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
Female210-192
Male320-290
30-392
Hospitalized240-490
50-591
Active Counties   5  60 and over0

Click here for data by county

Historical Data