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On May 8th, the first mosquito pool infected with West Nile Virus (WNV) in Philadelphia for the 2024 season was collected in Northeast Philadelphia. Positive mosquito pools are anticipated to be identified across the city in the coming weeks. No human cases have been reported in the City. While the number of human cases of WNV and location of outbreaks has varied by season across the country, identification of mosquitoes infected with WNV remains the best predictor of increased risk for human infection in a given location.
From May through October, PDPH, in collaboration with the PA Department of Environmental Protection, conducts mosquito management activities throughout Philadelphia, which entails surveillance and identification of mosquito pools, testing pools for WNV, and control activities (eliminating breeding sites, larviciding catch basins, ground spraying, etc.). Since May 2024, 35 locations in Philadelphia were treated to control larval mosquito populations.
Click here to download the latest 2024 West Nile Virus report in a printable format.
Click here to download the 2022 season summary report of West Nile Virus in a printable format.
Week 24 (6/9) - 6/15) |
2024 Season (5/1 - 6/15) |
|
---|---|---|
Mosquito Pools Tested |
64 |
191 |
WNV Positive Pools |
3 |
5 |
Human WNV Cases |
0 |
0 |
Neuroinvasive WNV |
0 |
0 |
WNV Fever |
0 |
0 |
Human WNV Deaths |
0 |
0 |
Presumptive Viremic Donors |
0 |
0 |
*191 mosquito pools at 51 different mosquito trapping sites
Advise your patients to:
WNV Testing and Reporting Requirements for Human Surveillance in Philadelphia: