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West Nile detected in Collierville


The Shelby County Health Department has received confirmation of mosquitoes infected with West Nile virus south of Bill Morris Parkway and east of Lamar Ave.

To date, positive tests pools have been previously confirmed in Collierville and two other Memphis zip codes.

Since March, the Shelby County Health Department’s Vector Control Program has treated areas by applying larvicides to standing bodies of water. These actions are consistent with the Health Department’s efforts to be proactive in decreasing the adult mosquito population.

Larviciding is the practice of applying an Environmental Protection Agency (EPA) 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 (adulticiding) of EPA-approved insecticides, weather permitting, in portions of specific ZIP codes according to the following schedule:

July 6
8:45-11:45 p.m.
ZIP Codes: 38117, 38120, 38122, 38128, 38133, 38134

July 7
8:45-11:45 p.m.
ZIP Codes: 38103, 38107, 38127

Truck mounted spraying only effectively kills adult mosquitoes that are currently flying at the time the insecticide is released. Because of this, residents are highly encouraged to be vigilant as it relates to controlling mosquito populations around their homes and businesses. Citizens are encouraged to practice the 4 D’s:

• DEFEND yourself by using insect repellent. Follow label instructions.
• DRESS in long sleeves and pants, loose and light colored clothing when outdoors.
• DUSK/DAWN stay indoors during this time to avoid mosquitoes when they are most active
• DRAIN standing water and install or repair window screens

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.

Humans can catch the West Nile virus through being bitten by an infected mosquito.

Although West Nile virus can occasionally cause severe disease, most human infections are mild, resulting in fever, headache and body aches that last only a few days.

Symptoms of severe disease include a high fever, neck stiffness, stupor, disorientation, coma or convulsions.
Persons over age 50 and those with compromised immune systems are at higher risk of severe disease. They should especially be careful to avoid mosquito bites.

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