Mosquitoes in Boone, Stephenson counties confirmed for West Nile Virus


According to the Boone County and Stephenson County Health Departments, mosquitoes in both counties have tested positive for West Nile Virus.

Boone County confirmed the presence of West Nile in a mosquito batch tested in Capron.

Stephenson County says a batch tested positive in Dakota.

This comes one day after an announcement that mosquitoes in Winnebago County had tested positive for the disease.

To date, only one human case has been reported in Illinois.

West Nile virus is transmitted through the bite of a mosquito that has picked up the virus by feeding
on an infected bird. Four out of five people who are bitten by an infected mosquito will not experience
any illness. Those who do get sick commonly experience fever, nausea, headache and body aches
within 3 to 14 days of the bite. However, serious illness such as encephalitis and meningitis, with
lingering complications and even death, are possible.

“The best way to prevent West Nile encephalitis and other mosquito-borne illnesses is to reduce the
number of mosquitoes around your home and neighborhood and to take personal precautions to
avoid mosquito bites,” said Amanda Mehl, Public Health Administrator of the Boone County Health

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