Fort Bend County announces positive West Nile Virus test

A sampling of mosquitoes in Fort Bend County has tested positive for the West Nile Virus (WNV).  When an area tests positive for the WNV in a few mosquitoes, it does not always mean there is a high risk of human infection. Simple measures can prevent the spread or infection from the WNV.  Working together with Fort Bend County and the cities in the county, residents can help control the mosquito population.

When an area has mosquito samples that test positive for WNV, Fort Bend County Road & Bridge or the appropriate city department takes a focused response to prevent mosquito breeding by increasing spraying and larviciding in the area until a sample of mosquitoes tests negative for the virus. Testing is conducted by trapping mosquitoes and submitting the sample to be tested for viruses.  Mosquitoes positive for WNV do not necessarily lead to human cases of disease.There have been no human cases of WNV in the County so far this year.

Fort Bend County monitors the type and numbers of mosquitoes present and submits samples for WNV testing. The County also sprays for nuisance mosquitoes but increases spraying and larviciding in areas where mosquito samples have tested positive for WNV.


Fort Bend County Health & Human Services encourages all residents, regardless of their location, to protect themselves and family against mosquito bites.  Remember the 4D’s: dress in loose light colored clothing to cover legs and arms, use repellent that contains DEET, avoid going outside at dusk and dawn, and drain standing water.

Spraying can only impact the mosquitoes where the spray reaches. Some backyards with high privacy fences can not be sprayed by a spray truck. The best practice to prevent mosquitoes around the home is to drain any standing water (flowerpots, trash cans) and if necessary, spray yards with commercial sprays available at most home improvement stores. Together, we can reduce the risk of WNV in our communities.

West Nile Virus is a potentially serious illness that spreads when infected mosquitoes bite humans and other animals. Symptoms include high fever, headaches, neck stiffness, nausea, and vomiting. It is important to note that 80% of people infected with WNV will show no symptoms at all, and only 1 in 150 people infected with WNV will develop severe symptoms. Severe symptoms include fever, and may include unusually intense headaches or confusion. If these symptoms develop seek medical attention immediately. Symptoms will appear 3-14 days after a person has been bitten by an infected mosquito.

For more information visit or call Kaila Thompson at 281-238-3551or email at

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Posted by on Aug 1 2014. Filed under Breaking News, News. You can follow any responses to this entry through the RSS 2.0. You can skip to the end and leave a response. Pinging is currently not allowed.

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