Mosquitoes Test Positive for West Nile Virus in County Including Florissant

Mosquitoes carrying West Nile Virus have been discovered in North and South County including Florissant , although no human cases have been reported, according to the Saint Louis County Department of Health.

Positive results have been reported in mosquitoes in Calverton Park, Castlepoint, Dellwood, Florissant, Mehlville, and Webster Groves.

“Positive mosquito tests are a reminder that preventative measures are important,” said Saint Louis County Health Department Director Dr. Dolores J. Gunn.  “Even though serious West Nile Virus cases in humans are rare, it is important to minimize our exposure. We can do this by eliminating opportunities for mosquitoes to breed and multiply, and protect ourselves by using repellants,” Dr. Gunn said.

Floodwater mosquitoes, which do not carry West Nile Virus, have been emerging in recent weeks and are active in daylight hours as well as being attracted to bright lights at night.

Here are steps residents can take to reduce the opportunities for mosquitoes to flourish:

• At least once a week, drain water from garbage cans, buckets, toys, flowerpots, wading pools, pet dishes, and other objects that collect water. Change water in birdbaths at least once a week.

• Keep gutters cleaned out, and repair any tears in door and window screens.

•  Wear long-sleeved shirts, long pants and light colors outdoors.

• Spray clothing with repellents containing DEET or picaridin, making sure to follow the directions on the label.

• Flexible drainage pipe is commonly used to drain water from downspouts.  A big drawback is that it holds water and breeds mosquitoes if not properly sloped when installed.

The Health Department routinely collects mosquito samples to test and help determine where to focus control efforts. To find out where the county will be spraying, call 615-4-BUG (615-4284) for the nightly mosquito-spraying schedule.

For more information on mosquito prevention, contact the County Vector Control office at 314-727-3097 or visit the Health Dept website www.stlouisco.com/doh.

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