West Nile Virus (WNV)
West Nile virus (WNV) is a mosquito-transmitted virus that can cause
encephalitis (inflammation of the brain) in some people. This virus usually circulates between mosquitoes
and birds in Africa and Europe. However, in 1999, an outbreak of West
Nile encephalitis was reported in New York City. Since then, the virus
has spread to 48 states and the District of Columbia.
In July 2002, WNV was found in Minnesota. Fortunately, most people who
are bitten by infected mosquitoes will experience either no symptoms,
or mild illness.
MDH is no longer taking dead bird reports. Thank you for your help during the past four years.
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