Texas A&M Fulbright work in Argentina sharpens U.S. Chagas surveillance

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A Texas A&M researcher’s Fulbright appointment to Argentina is turning a South America-based Chagas disease project into a story with direct U.S. veterinary relevance. Gabriel Hamer, Ph.D., an entomologist in Texas A&M’s College of Agriculture and Life Sciences, was named a 2025-2026 Fulbright U.S. Scholar, with Argentina listed as his host country. According to the source material, the work focuses on Chagas vectors, or kissing bugs, and on collaboration with Argentine scientists to improve surveillance tools and better understand how the insects disperse. (stories.tamu.edu)

The timing matters because Chagas disease is getting harder to frame as a problem confined to Latin America. In a 2025 Emerging Infectious Diseases review, CDC-affiliated authors argued that Chagas disease should be recognized as endemic in the U.S., noting that triatomine bugs occur across the southern half of the country and have been identified in 32 states. The same review said autochthonous human infections have been identified in eight states and that canine Chagas disease is a concern in many working and companion dog populations, even if it remains underrecognized. (wwwnc.cdc.gov)

Hamer’s Argentina work also builds on a concrete technology pipeline rather than a purely observational project. In a 2024 paper, Hamer and colleagues reported development of a “kissing bug kill trap” after several years of field testing in Texas and Mexico. Their conclusion was that solar-powered LED multiple-funnel traps were suitable for triatomine surveillance and might also have management potential by intercepting dispersing adults before they reach homes or animal environments. Texas A&M’s lab materials further show that trap evaluation is already part of Hamer’s ongoing vector-borne disease portfolio. (hamerlab.tamu.edu)

That cross-border approach makes scientific sense. Argentina has long been central to Chagas vector-control research, particularly around Triatoma infestans in the Gran Chaco, where surveillance after insecticide campaigns and reinfestation pressure have been persistent challenges. Recent literature from Argentina has continued to test improved multimodal traps and community-based surveillance approaches, suggesting that Hamer’s collaboration is entering an ecosystem with deep field experience and a different vector-control history than the U.S. has. (sciencedirect.com)

On the veterinary side, Texas A&M is already linking vector ecology to clinical disease in dogs. A separate 2025 Texas A&M announcement described One Health projects involving Sarah Hamer, DVM, Ph.D., and Ashley Saunders, DVM, DACVIM, aimed at improving detection, treatment, and staging of Chagas disease in dogs, including pet dogs seen at the teaching hospital and working dogs with repeated exposure risk. That work reinforces the practical value of better bug surveillance: if clinicians and communities can identify where and when infected vectors are active, they may be better positioned to interpret exposure histories, counsel pet parents, and recognize cardiac disease that might otherwise go unexplained. (stories.tamu.edu)

Expert reaction in the classic quote-driven sense appears limited so far, but the broader research community is sending a clear signal. The CDC review emphasized that infected U.S. triatomines commonly show T. cruzi prevalence from roughly 30% to more than 50%, and that Triatoma gerstaeckeri appears especially important in Texas domestic settings. Texas A&M investigators have likewise highlighted dogs as a key data source for understanding exposure and disease burden. Taken together, that suggests Hamer’s Argentina project is less about overseas academic exchange alone and more about importing practical surveillance lessons into a U.S. setting where veterinary cases are real, but detection systems are still patchy. This last point is an inference drawn from the reported goals of the Fulbright work and the current U.S. surveillance gaps. (wwwnc.cdc.gov)

Why it matters: For veterinarians, especially in the South, the story is about earlier signal detection. Chagas can be difficult to diagnose, canine disease may present late as cardiac pathology, and public awareness of kissing bugs still outpaces systematic surveillance in many regions. Better traps and better understanding of vector dispersal could strengthen local risk mapping, kennel and shelter prevention planning, client education, and collaboration with state health and entomology partners. It could also help the profession push Chagas higher on the list of differentials when dogs from endemic-risk areas present with arrhythmias, myocarditis, or sudden death histories. (wwwnc.cdc.gov)

What to watch: The next markers will be whether Hamer’s Argentina collaboration yields published field data on trap performance, whether those tools are adapted for U.S. peridomestic and kennel settings, and whether the work feeds into broader Chagas surveillance efforts that connect entomology, veterinary medicine, and public health. (stories.tamu.edu)