Local health officials say Chicago has reached a “high risk” level of the West Nile virus because mosquitoes are testing ...

There has been an increase in West Nile virus activity as more mosquito samples and dead birds have tested positive in recent ...

Certain mosquito species found in the county, especially in the western portion near Parachute and Rifle, tested positive for carrying the virus.

The Vallejo Fire Department responded to reports of a man who was inside a home, unresponsive, early Monday morning, making it its ninth homicide of the year. • Video above: How to ...

A West Nile virus survivor shared the story of her harrowing journey with the brain infection she first thought was a stroke.

Chicago reported three human cases of West Nile virus in the last month as city officials warn the risk of contracting the ...