Philadelphia Department of Public Health reports the year's first cases of West Nile Virus infections. Here's what you need to know about the virus.

Philadelphia health officials say since 2001, the annual number of severe West Nile virus cases in the city has been between 0 and 24 cases, with the peak seasons coming in 2003, 2010 and 2018.

Two Philadelphia residents have been infected with West Nile virus this year, and already more mosquitoes are testing positive for the virus than in past seasons, health officials say. The ...

A warning for anyone heading outdoors this weekend. Mosquitoes infected with West Nile virus have been detected in our area.