The Washington State Department of Health Zoonotic Disease Program has just received word from the Benton Mosquito Control District that they have a second PCR-confirmed, WNV positive mosquito pool. PCR testing was done at Oregon State Univ. It was from a pool of 50 Culex pipiens mosquitoes (the first positive this year came from a pool of Culex tarsalis mosquitoes). The mosquitoes were collected from the same area as this year's first positive pool - south of Grandview along the Benton-Yakima County border.
For additional West Nile Virus (WNV) Information use the link below.
http://www.doh.wa.gov/ehp/ts/Zoo/WNV/WNV.html