Summer brings more mosquitoes, take necessary precautions

April 15, 2016

Earlier this week, Denton County confirmed its first case of a person infected with the Zika Virus. Although the case was not a result of a local transmission of the virus, the university community should take precautions in travel and against West Nile Virus which is prevalent in the North Texas region.

The Centers for Disease Control continues to caution travelers to avoid areas in Central and South America, the Caribbean and Pacific Islands that have active Zika Virus transmissions and to take precautions in general when traveling to those areas.

The public health institute also has data that shows the Dallas-Fort Worth area has one of the highest rates in Texas of humans contracting West Nile Virus. Both viruses are carried by mosquitoes.

Precautionary measures that may decrease the chance of mosquito bites and your exposure to these illnesses include:

  • Wearing long-sleeve shirts and long pants
  • Using DEET or another EPA-registered insecticide that repels mosquitoes
  • Using permethrin on one’s clothing
  • Avoiding unnecessary travel to areas where the virus is prevalent and staying indoors if you do
  • Closing doors and windows at dusk and dawn, when mosquitoes carrying West Nile are most active. Please note that the type of mosquitoes that carry Zika are typically active throughout the day.
  • Eliminating standing water around your house – mosquitoes can lay eggs in very shallows depths of water
  • Treating front and back door areas with residual insecticides

Those who become infected with West Nile may not experience any symptoms and most who are infected will recover completely, with some experiencing fatigue that can last for a few weeks or months. According to the CDC, about one in five may experience mild symptoms such as:

  • Fever
  • Headache
  • Joint pain
  • Vomiting
  • Rash
  • Diarrhea 

Those who become infected with Zika may also have mild symptoms that resolve within a week, and may include:

  • Fever
  • Rash
  • Joint pain
  • Conjunctivitis (red eyes)

These symptoms can be similar to those of chikungunya or dengue fever. If you’re experiencing these symptoms, you are advised not to take aspirin or NSAID pain relievers, which can aggravate dengue, and to seek immediate medical attention.

In addition to transmission via mosquito bite, there is a possibility that Zika may also be transmitted through sexual contact. Until more is known about the sexual transmission of the virus, those returning from Zika-affected areas are encouraged to use condoms for all sexual contact.

The Zika Virus can potentially harm unborn children, so pregnant women are asked to take special precautions and potentially reschedule plans to travel to areas where the virus is prevalent.

Because the Zika Virus can be transmitted when a mosquito bites someone who is infected and then bites someone who is not, the CDC recommends that those who have traveled to infected areas continue to use mosquito prevention for three weeks after returning home.

Find more information online at the Centers for Disease Control. The West Nile site is at and the Zika Virus site is at


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