Health

Austin on Alert After Wastewater Tests Positive for Measles Traces

Updated
Jul 23, 2025 11:00 AM
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Austin public health officials are raising concerns following the discovery of measles in the city’s wastewater, indicating a potential unreported or asymptomatic case in the region. 

Austin Public Health has reported that routine wastewater surveillance in Travis County during the first week of July detected the presence of measles, marking a significant milestone as it is the first identification of the virus in local sewage testing. Authorities obtained the findings on Friday and are currently observing for any related clinical cases.

“This serves as a preliminary alert,” stated Dr. Desmar Walkes, Austin-Travis County Health Authority and Medical Director. “We are receiving reports indicating that there might have been an individual in our vicinity who was traveling and could have had measles or potentially someone unaware that they are infected.”

Wastewater is gathered from sewage treatment facilities and examined to identify viruses and various pathogens. Austin initiated its wastewater surveillance program three years ago to monitor COVID-19, and it has evolved into an essential resource for public health. This year marks the initial verified identification of measles via that monitoring system.

Texas is witnessing a notable increase in measles cases. Since late January, the Texas Department of State Health Services has reported a total of 762 cases throughout the state. In Travis County, there have been two reported cases to date in 2025—both linked to international travel.

Julie Nahrgang, the executive director of the Water Environment Association of Texas, highlighted the critical role of wastewater surveillance in preventing diseases. “It is evident that measles is resurging, particularly in Texas, New Mexico, and throughout the nation.” "This type of early detection provides public health officials with an additional resource for timely intervention," she stated.

Dr. Walkes emphasized the extreme contagiousness of measles, particularly impacting individuals who have not received vaccinations. “Approximately 94% of individuals who contract measles have not received vaccinations,” she stated. “Achieving complete vaccination involves receiving two doses of the MMR vaccine, which delivers 97% protection.”

As inquiries progress, authorities are advising community members to verify that their vaccinations are up to date and to remain vigilant for possible symptoms, which may include an elevated fever, cough, runny nose, and a distinctive rash. 

Health officials are closely monitoring clinical data to assess the potential emergence of new measles cases shortly.

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