The Illinois Department of Health confirmed Thursday a second human case of the West Nile virus.
State public health director, Dr John Lumpkin, says a 57-year-old Madison County man became critically ill with encephalitis. He remains hospitalized, but has been moved from the intensive care unit.
The fear of new west Nile cases pushed officials to spray for mosquitoes at the Springfield Fair grounds just before the big event.
Boone County Fair officials did spray for mosquitoes before the fair kicked off earlier this week and it seems like it's had a positive effect.
While fair organizers expressed concern about West Nile, they spray for mosquitoes each year. The spray cool temperatures and a dry summer have helped combat the pesky insect.
The only thing that seems to be buzzing and biting at the Boone County Fairgrounds this week is business.
West Nile has showed up in 53 Illinois counties. Officials say your best weapon is using a mosquito repellant if you choose to head outdoors. The Boone County Fair wraps up on Sunday.
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West Nile in Illinois
States With Birds Testing Positive in 2002:
Source: http://www.idph.state.il.us/envhealth/wnv.htm (Illinois Department of Health Web site), and http://westnilevirus.nbii.gov/ (National Biological Information Infrastructure Web site) contributed to this report.