West Nile Virus Spreads in Illinois
The number of Illinois counties reporting West Nile virus (WNV) activity grew to 82 with the Aug. 19 confirmation that a horse from Massac County has tested positive for the mosquito-transmitted virus.
In addition to the Massac County horse, nine other horses–in Clay (1), Montgomery (1), Madison (4), Union (2) and Wabash (1) counties-–were reported positive Monday for West Nile
