ST. CLAIR COUNTY, Ill. (KSDK) - The first human case of West Nile virus was reported in St. Clair County this week.
The elderly man from Belleville became the 14th positive human case in the state this year, with two reported deaths. The Illinois Department of Public Health says 25 mosquito pools have tested positive for the virus this season in St. Clair County.
Since surveillance on the disease started May 1, 65 birds and 2,104 mosquito samples from 59 counties have tested positive.
The Illinois Department of Health says the virus is transmitted through mosquito bites, but only 20 percent of people who are bitten by an infected mosquito ill become ill. People over the age of 50 are at the highest risk of complications from the virus.
Symptoms of West Nile virus usually include a fever, headache, and body aches, though more serious complications can arise, such as encephalitis, meningitis, and death.