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For the latest Zika news, see our News Releases page and/or TexasZika.org.

Zika Virus – July 26, 2017

DSHS and Hidalgo County have determined that a mosquito bite in Texas was the probable source of a Hidalgo County resident’s previous Zika infection, making it the first local mosquito infection we know of in 2017. Read more in the DSHS news release Health Officials Find Probable Local Zika Infection.

DSHS provides updates every Tuesday on the number of Zika virus disease cases in Texas by the patient’s county of residence. As of the week ending July 21, 19 Zika cases have been reported for 2017, with 323 cases reported for 2015 and 2016. Full data for previous years is available at TexasZika.org.

Bexar - 2
Brazoria - 1
Brazos - 1
Cameron - 6
Collin - 1 
Dallas - 1
Denton - 1 
Harris - 3       
Lubbock - 1
Smith - 2

Zika is a mosquito-borne virus that can cause fever, rash, muscle and joint aches and red eyes (conjunctivitis). Symptoms are usually mild, and most people exposed to Zika virus won’t develop any symptoms at all. Zika has also been linked to a birth defect called microcephaly and other poor pregnancy outcomes in babies of mothers who were infected with the virus while pregnant.

The Texas Department of State Health Services continues to prepare for the possible transmission of Zika virus in Texas by emphasizing how people can protect themselves, increasing the state’s capacity to test for the virus, and working with local governments to assess mosquito control capabilities and activities.

Because the virus spreads from place to place through human travel, DSHS encourages people to follow travel precautions for countries and regions where Zika virus transmission is ongoing. That generally includes Latin America, the Caribbean and some Pacific islands. DSHS recommends travelers avoid mosquito bites while abroad and for 21 days after returning, in case they have been exposed to the virus.

People everywhere can protect themselves from mosquito bites and the threat of Zika by taking a few simple steps:

  • Apply EPA-registered insect repellents.  
  • Wear pants and long-sleeved shirts that cover exposed skin.  
  • Use screens or close windows and doors to keep mosquitoes out of your home.  
  • Remove standing water in and around your home.  
  • Cover trash cans or containers where water can collect.  

Additional information at TexasZika.org

Texas Zika Campaign Materials

DSHS News Releases

Zika Virus at CDC


Cyclospora – July 26, 2017

DSHS and local health departments around the state are investigating an increase in the number of reported cases of the Cyclospora parasite beginning in mid-June. Long-lasting illnesses caused by the parasite, with symptoms like watery diarrhea, loss of appetite and fatigue, have been seen in various parts of the state and have prompted public health experts to advise health care providers and the public to be aware of the symptoms and pursue testing when needed.

Past outbreaks have been associated with imported fresh produce, and disease investigators are busy gathering information about the current illnesses as they attempt to determine whether there is a common source for the current outbreak. DSHS will update the 2017 count of Cyclospora cases here on Tuesdays and Fridays during the outbreak. More information is available in the DSHS news release Cyclospora on the Rise in Texas; Testing, Reporting Key to Finding Source.

2017 Cyclospora cases by county
County Cases
Collin 1
Fort Bend3
Palo Pinto1
County pending or unknown5

West Nile – July 26, 2017

Texas is again experiencing illnesses caused by West Nile virus, a virus spread by mosquitoes. In 2016, Texas reported 370 human cases of West Nile illness, including 18 deaths. Most people who get infected don’t get sick, but about 20 percent will experience symptoms of West Nile fever: headache, fever, muscle and joint aches, nausea and fatigue. In one percent of infections or less, the virus can affect the nervous system, causing a case of West Nile neuroinvasive disease that can include neurological symptoms like disorientation, tremors, convulsions, paralysis, coma and even death. The precautions used to prevent mosquito bites to stop Zika will also help prevent West Nile infections.

2017 West Nile Cases
County West Nile Fever West Nile Neuroinvasive Disease Total
Collin 1 1
Cooke 1 1
Dallas 1 1
Denton 1 1
El Paso 3 3
Harris 1 1
Montgomery 1 1
Panola 1 1
Tarrant 2 2
Val Verde 1 1
Van Zandt 1 1
Total 6 8 14

Last updated July 26, 2017