Central Midwest Water Science Center

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Date published: September 5, 2001

USGS Finds West Nile Virus in Chicago-Area Crows

Scientists from the U.S. Geological Survey (USGS) in Madison, Wisc., said today that two dead crows, found in the Chicago area tested positive for the West Nile Virus. Last week, dead crows found near Milwaukee also tested positive for the virus. So far this year, West Nile Virus has been identified in 20 states, the District of Columbia and in southern Ontario.