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West Nile detected in three Shelby County ZIP codes

The Shelby County Health Department has received confirmation of mosquitoes infected with West Nile virus within ZIP codes 38018 (Cordova), 38116 (South Memphis) and 38141 (Southeast Memphis). These are the first positive mosquito pools found within Shelby County this year.

Since April, the Shelby County Health Department’s Vector Control Program has treated areas by applying larvicides to standing bodies of water. Larviciding is the practice of applying an Environmental Protection Agency registered insecticide to areas where mosquito breeding has been confirmed and is the most effective way of eliminating mosquito populations.

As an additional precaution, the Health Department will conduct mosquito control activities, including truck-mounted spraying of EPA-approved insecticides, in numerous Shelby County ZIP codes.

Truck mounted spraying only effectively kills adult mosquitoes that are currently flying at the time the insecticide is released.

Individuals with chronic health problems such as asthma or other lung conditions may want to remain indoors during the time of spraying. Citizens who do not want their residences to be sprayed should contact the Health Department’s Vector Control Program at (901) 222-9715.

To ensure the insecticide is most effective, the scheduled spraying will be canceled if any of the following weather conditions are present for the majority of the schedule spray time; greater than a 65-percent chance of rain, wind speeds that are 11-miles-per-hour or greater and temperatures less than 60 degrees Fahrenheit.

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