HOFFMAN ESTATES, Ill. (WLS) -- The first two batches of mosquitoes to test positive for West Nile virus have been discovered it Illinois.
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One batch is in Hoffman Estates in Cook County
The other batch is downstate in Morgan County.
The West Nile Virus is transmitted to humans through mosquito bites. While most won't show any symptoms, in rare cases severe illness including death can result.
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SEE ALSO | 2 West Nile Virus deaths confirmed in DuPage County
Last year, there were six West Nile deaths in Illinois.