By Jeff Ray

DALLAS (CBSDFW.COM) – Concerns about the West Nile Virus are prompting DFW communities to start taking action.

A mosquito tested positive for the virus in south Dallas this week, so crews in Dallas County will begin ground spraying on Wednesday night. That effort starts at 10:00 p.m. in a small patch of southeast Dallas. The area being sprayed is south of Highway 175, between Murdock Road and North Prairie Creek Road. It covers both sides of Fruit Branch Creek and Fireside Park, just north of Interstate-20.

Residents in the area are being told to stay inside on Wednesday night, keep windows closed and pets indoors, and avoid contact with the spray. If you are driving in the area and come across the spray truck, remain in your car and keep the windows up. If the spray gets on you, wash it off with soap and water. The spray breaks down quickly in sunlight.

Dallas city officials said that the spraying does work. It started in DeSoto and Lancaster last week, and there has already been a 60 percent drop in the mosquito population reported.

So far this year, there have been no human cases of the West Nile Virus reported in Dallas County. But the season is just starting. Last year, Dallas County was the hardest hit in all of Texas with 371 confirmed cases.

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