West Nile virus (WNV) has been detected in mosquitos collected from the Borough of Zelienople in Butler County. This is the first sample to test positive for this virus in Butler County this year. Additional monitoring will be done in the area where these mosquito samples were collected and appropriate control work will be conducted, depending on the number and types of mosquitoes that are found. (See link below for full Press Release)
Press Release
West Nile Virus Fact Sheet