What is PHMDC doing about WNV? 

Our staff collects and monitors information on WNV infection in humans throughout the season.  Infections in humans are monitored through lab testing and reports from healthcare providers. 

Treatment of Mosquito Breeding Areas

Public Health watches mosquito breeding areas.  We treat water on public land that has high numbers of mosquitoes known to carry and transmit WNV (primarily Culex species).  The treatment limits the build up of WNV infection in the bird population.  This treatment protects human health by reducing the amount of virus in the environment.  The Department also traps adult mosquitoes to measure population levels.  Some of these mosquitoes are also tested for WNV.