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    Home to Tarrant County's most serious health threat. Take the steps to protect yourself, your loved ones and your community from mosquito-borne illnesses. Be Mosquito Free

    Even the most unexpected places can become breeding grounds for mosquitoes and the illnesses they can carry. Tarrant County Public Health (TCPH) and County officials are asking for your help to protect our community. Do you part and help Tarrant County Be Mosquito Free:

    ·  Wear long sleeves and pants

    ·  Use EPA-approved insect repellent

    ·  Dump standing water

    ·  Keep vegetation trimmed

    Specific North Texas mosquitoes that carry disease

    Culex quinquefasciatis

    Culex quinquefasciatis

    Aedes aegypti mosquito

    Aedes aegypti

    Aedes albopictus mosquito

    Aedes albopictus

    Imported cases of both Zika and Chikungunya could make local spread of both viruses possible because the Aedes mosquitoes that transmit those viruses are found in Texas. While the Culex mosquito that carries West Nile Virus is active and bites only from dusk to dawn, Aedes mosquitoes, which carry Zika and Chikungunya, are active and bite during the day – so it’s important for people to do what they can to eliminate mosquito breeding sites and to protect themselves against mosquito bites at all times.

    Because symptoms of these viruses are similar, TCPH encourages physicians to consider Zika virus, Chikungunya and Dengue infection when examining patients who show acute onset of fever and joint pain - and patients who have recently visited areas where at least one of the viruses is present.


    Link to Arbovirus Reports

    These reports reflect TCPH efforts to track incidence of Chikungunya Virus, Dengue Virus, St. Louis Encephalitis Virus, West Nile Virus and Zika Virus in Tarrant County.


    Mosquito Prevention Toolkit 

    Understanding the risks and preventing mosquitoes from breeding are the best and most practical means of keeping you and your family safe from mosquito-borne threats.

    Tarrant County Public Health has prepared a toolkit with printable items to help you better understand the diseases moquitoes carry, mosquito breeding habits and what you can do to protect yourself from being bitten.

    Accessibility notice: If you are having trouble printing any of these documents, please call 817-321-5313.

    West Nile Virus Surveillance

    Gravid mosquito trap

    As in previous seasons, TCPH has made Gravid mosquito traps available to all Tarrant County cities. Cities are setting the traps in strategic locations, collecting samples of mosquitoes and delivering them to the TCPH laboratory or a contracted laboratory for testing, specifically for West Nile Virus positive pools. Collectively, more than 150 traps are now in use across the county. TCPH will use the same process in the County’s unincorporated areas. Test results will be posted on the interactive map on this web page.


    There is no way to predict what any moquito-borne illness season will be like. Studies and research continually prove that the most effective, most practical and least expense means of preventing such illnesses is to keep mosquitoes from breeding where possible and to keep yourself from being bitten by mosquites through the use of repellent and wearing appropriate clothing when outdoors.