Dallas County health officials confirmed Monday the third human case of West Nile virus in the 2014 season.
The case involves a person in Lake Highlands, in ZIP code 75238, who has contracted West Nile fever.
Due to patient privacy, further information on the patient is not expected to be released.
"We want our residents to know the mosquitoes that carry West Nile virus are here and they're active," said Zachary Thompson, DCHHS director. "Our mosquito surveillance program and the county and municipal abatement teams are taking appropriate actions to ensure the safety of our residents. However, it is important for residents to take the necessary precautions."
Last month, Dallas County confirmed two cases of West Nile fever. Last year, the county reported more than a dozen human cases.
Most people bitten by a West Nile virus-infected mosquito will not show any symptoms.
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The Centers for Disease Control and Prevention states, "The easiest and best way to avoid West Nile virus is to prevent mosquito bites.
When you are outdoors, use insect repellent containing an EPA-registered active ingredient. Follow the directions on the package.
Many mosquitoes are most active at dusk and dawn. Be sure to use insect repellent and wear long sleeves and pants at these times or consider staying indoors during these hours.
Make sure you have good screens on your windows and doors to keep mosquitoes out.
Get rid of mosquito breeding sites by emptying standing water from flower pots, buckets and barrels. Change the water in pet dishes and replace the water in bird baths weekly. Drill holes in tire swings so water drains out. Keep children's wading pools empty and on their sides when they aren't being used."