"Last year we saw the peak in February," State health department spokeswoman Melaney Arnold said. "It might just be starting earlier."
Flu season appears to be peaking early in Illinois →
Fewer pools of mosquitoes and fewer dead birds across Illinois are testing positive for the virus this year compared to last year, said Melaney Arnold, spokeswoman for the state Department of Public Health.
Illinois sees fewer West Nile cases, still advises caution →