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.

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.