The Hays County Health Department – which encompasses cities including San Marcos, Wimberley and Buda — said in a press release that officials confirmed the case Tuesday. The department didn’t reveal the person’s identity for privacy reasons.
About 80% of those infected with West Nile don’t experience symptoms, according to a statement from the Hayes County Health Department. However, the other 20% will develop fever, headache, body aches, joint pain, rash or swollen lymph nodes.
Officials warned that those with a compromised immune system face greater risk of symptoms.
About one in 150 West Nile cases can be serious, or even fatal, according to the Centers for Disease Control. Indeed, 56 Texans died last year due to the mosquito-borne disease, according to the Texas Department of State Health Services.
Although there are 272 positive pools of West Nile this year so far, none has been located in Bexar County — at least, not yet.
To reduce risk, Hays County officials encouraged people to use insect repellent with DEET, drain standing water and dress in long, loose-fitting and light-colored clothing.
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This article appears in Jul 23 – Aug 6, 2025.