The Memphis and Shelby County Health Department's Vector Control Section has once again detected high levels of Culex mosquito breeding activity in portions of various zip codes throughout Memphis and Shelby County. Based upon the positive mosquito pools reported by the Tennessee Department of Health Laboratory (total of 78 for this season), mosquito trap surveillance, and five birds confirmed positive for West Nile Virus, Health Department teams will begin adulticiding (spraying) in portions of specific zip codes between 9:00 p.m. and midnight on Thursday night (July 29, 2004), weather permitting.
The areas to be sprayed were chosen based upon mosquito surveillance and lab testing. Presence of high number of Culex mosquitoes (trap counts) and the identification of West Nile Virus infected mosquitoes and birds indicate increased risk of human infection. Spraying will be conducted in these areas to reduce that risk.
Spray trucks will be in portions of the following zip codes:
38018, 38103, 38104, 38105, 38106, 38107, 38108, 38111, 38112, 38114, 38117, 38120, 38122, 38126, 38128, 38133, 38134 and 38138.
Five positive birds have been detected in Shelby County as of today. No human cases have been reported in Shelby County as of this time.