Overview
- Health surveillance teams found West Nile virus in mosquito samples near Pennypack Park in Northeast Philadelphia and in the Bronx, Brooklyn, Queens and Staten Island this week.
- Despite positive mosquito tests across the city, New York City has not recorded any human West Nile infections in 2025.
- The CDC reports at least 49 human West Nile cases in 15 states so far this year, including Arizona, Louisiana and Texas.
- The Philadelphia Department of Health has notified doctors and medical facilities to watch for symptoms and report suspected cases immediately.
- Residents are urged to eliminate standing water, wear protective clothing and use EPA-approved repellents as city agencies step up pesticide spraying.