West Nile Watch Update - Mosquito samples have tested positive in... Dallas County Health & Human Services sent this bulletin at 06/30/2020 03:33 PM CDT Having trouble viewing this email? View it as a Web page. West Nile Watch Update - June 30, 2020 Mosquito samples have tested positive for West Nile virus in the following areas: Irving - 75060 Carrollton - 75007 (2 New Pools)