{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:54:07Z","timestamp":1792788847485,"version":"4.5.0"},"reference-count":53,"publisher":"FapUNIFESP (SciELO)","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Secretar\u00eda de Ciencia, Humanidades, Tecnolog\u00eda e Innovaci\u00f3n","id":[{"id":"https:\/\/ror.org\/059ex5q34","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Mem. Inst. Oswaldo Cruz"],"abstract":"<jats:p>BACKGROUND Chagas disease (CD) is a chronic, disabling vector-borne disease caused by Trypanosoma cruzi and transmitted to humans by infected triatomine insects during blood meals. CD is currently endemic in 21 Latin American countries and the United States of America, with factors such as climate change, urbanisation, and migration contributing to the expansion of the vector\u2019s range from endemic to non-endemic regions. Globally, 44 countries have reported CD cases, indicating that it is an important public health problem.  OBJECTIVES To document the presence and geographic distribution of Triatoma dimidiata and Triatoma barberi in previously unreported areas, and to assess their epidemiological relevance for CD.  METHODS Molecular, entomological, and spot pattern analyses were performed. DNA was extracted from triatomines, the ITS2 region amplified, cloned, and sequenced. An extensive search for reports on triatomine in Oaxaca was conducted from 2019 to 2024, and a distribution map was generated.  FINDINGS We report the range expansion of two species to communities in La Ca\u00f1ada region. The CD vector range expansion poses an increased risk of infection in newly affected communities, given the higher prevalence of CD in Oaxaca.  MAIN CONCLUSIONS Awareness of triatomine distribution is essential to prevent the spread of CD into non-endemic areas and to identify emerging endemic zones for epidemiological surveillance and disease control.<\/jats:p>","DOI":"10.1590\/0074-02760260093","type":"journal-article","created":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T11:18:14Z","timestamp":1792149494000},"source":"Crossref","is-referenced-by-count":0,"title":["Range expansion of two Triatominae species in Oaxaca, Mexico: first report and molecular identification of Triatoma barberi and Triatoma dimidiata in the Ca\u00f1ada region"],"prefix":"10.1590","volume":"121","author":[{"given":"Benjam\u00edn de Israel","family":"Carbajal-Olivier","sequence":"first","affiliation":[{"name":"Universidad de La Ca\u00f1ada","place":["Teotitl\u00e1n de Flores Mag\u00f3n, Oaxaca, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura Isela","family":"Cruz-L\u00f3pez","sequence":"additional","affiliation":[{"name":"Universidad de La Ca\u00f1ada","place":["Teotitl\u00e1n de Flores Mag\u00f3n, Oaxaca, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sa\u00fal","family":"Gonz\u00e1lez-Guzm\u00e1n","sequence":"additional","affiliation":[{"name":"Hospital Regional de Alta Especialidad de Zumpango","place":["Estado de M\u00e9xico, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roc\u00edo","family":"Rosas-L\u00f3pez","sequence":"additional","affiliation":[{"name":"Universidad de La Ca\u00f1ada","place":["Teotitl\u00e1n de Flores Mag\u00f3n, Oaxaca, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vladimir","family":"Paredes-Cervantes","sequence":"additional","affiliation":[{"name":"Centro M\u00e9dico Nacional La Raza","place":["Ciudad de M\u00e9xico, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edward T","family":"Bagu","sequence":"additional","affiliation":[{"name":"University of South Dakota","place":["Vermillion, South Dakota, USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Citlalli","family":"Regalado-Santiago","sequence":"additional","affiliation":[{"name":"Universidad de La Ca\u00f1ada","place":["Teotitl\u00e1n de Flores Mag\u00f3n, Oaxaca, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Araceli","family":"Vaquero-Vera","sequence":"additional","affiliation":[{"name":"Universidad de La Ca\u00f1ada","place":["Teotitl\u00e1n de Flores Mag\u00f3n, Oaxaca, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1581-8660","authenticated-orcid":false,"given":"Patricia","family":"Gonz\u00e1lez-Cano","sequence":"additional","affiliation":[{"name":"Universidad de La Ca\u00f1ada","place":["Teotitl\u00e1n de Flores Mag\u00f3n, Oaxaca, Mexico"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","published-online":{"date-parts":[[2026]]},"reference":[{"issue":"3","key":"ref1","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1590\/0074-0276140362","article-title":"The main sceneries of Chagas disease transmission. 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