The West Nile Virus strikes in Michigan; it infects the first bird this year.
Today a crow tested positive at Michigan State University's Diagnostic Center for Population and Animal Health.
The bird was collected earlier this month in Muskegon County.
Last year in Michigan, four people died from the virus and 62 cases were reported.
131 birds tested positive.
Researchers say the spread of the West Nile Virus cannot be predicted.
Most people bitten by an infected mosquito show no symptoms of illness, but some become sick three to 15 days afterwards.
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