A blue jay in the Village of Hartland and a crow in Waukesha tested positive for West Nile Virus (WNV) on Aug. 18 and Sept. 8, respectively, according to Waukesha County officials.
The Wisconsin Division of Health notified the Waukesha County Division of Environmental Health today that the birds were infected. Humans can contract WNV through the bite of an infected mosquito, and mosquitoes get the virus by feeding on infected birds.
"The positive bird test results means that residents of Waukesha County need to continue to be vigilant in their personal protective measures to prevent mosquito bites," read a statement from the Waukesha County Department of Parks and Land Use.
According to the statement, the majority of people infected with WNV do not get sick, but symptoms of infection include fever, headache or rash. Less than one percent of infected people get seriously ill.
Residents are encouraged to report dead crows, blue jays or ravens to the Dead Bird Reporting Hotline at 1-800-433-1610.