Pennsylvania Equine West Nile Virus Up-Date 2011
Posted: December 2, 2011
Summary of 2011 state data for West Nile Virus
Red: WNV present; Blue: Not present in County
By the Pennsylvania West Nile Virus Control Program
West Nile
virus is a mosquito-borne disease that can cause encephalitis, a brain
inflammation. Infected mosquitoes pass the virus onto birds, horse and people.
West Nile virus cases in Pennsylvania occur primarily in the mid-summer or early
fall, although mosquito season is usually April-October. State reports have
shown that we have several hot spots located in Pennsylvania.
For more information about West Nile Virus and the state’s surveillance and control program, visit www.westnile.state.pa.us. Media contact: John Repetz, 717-787-1323
