New Discoveries of Sylvatic Triatoma infestans (Hemiptera: Reduviidae) Throughout the Bolivian Chaco

Etienne Waleckx MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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Stéphanie Depickère MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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Renata Salas MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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Claudia Aliaga MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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Marcelo Monje MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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Hiber Calle MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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Rosio Buitrago MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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François Noireau MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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Simone Frédérique Brenière MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle), Université Montpellier1 et 2 - CNRS 5290 - IRD 224, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia; Instituto Nacional de Laboratorios de Salud (INLASA), Laboratorio de Entomología Médica, La Paz, Bolivia; Escuela Técnica de Salud, Cochabamba, Bolivia; IIBISMED, Facultad de Medicina, Universidad Mayor de San Simon, Cochabamba, Bolivia

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Sylvatic populations of Triatoma infestans might be involved in the recolonization of human dwellings. We report here the discoveries of new T. infestans sylvatic foci in the Bolivian Chaco. Eighty-one triatomines were caught, 38 of which were identified as T. infestans. Triatoma sordida and Panstrongylus geniculatus were the other species collected. One T. infestans and one T. sordida were infected with Trypanosoma cruzi TcI; one T. infestans was infected with TcII. These discoveries add to the debate on the geographic distribution of sylvatic T. infestans populations, the geographic origin of the species, and the epidemiological role of these populations.

Author Notes

*Address correspondence to Etienne Waleckx, Representación IRD en Bolivia, Avenida Hernando Siles #5290, esquina Calle 7 de Obrajes, CP 9214 – 00095, La Paz, Bolivia. E-mail: etienne.waleckx@ird.fr

Financial support: This study was supported by the ANR (Agence Nationale de la Recherche, France), the IRD (Institut de Recherche pour le Développement, France), the UNICEF/UNDP/World Bank/WHO Special Program for Research and Training in Tropical Diseases (TDR, no. A70596), and the IDRC (International Development Research Centre, Canada, no. 103696-012).

Authors' addresses: Etienne Waleckx, Stéphanie Depickère, Renata Salas, Claudia Aliaga, Marcelo Monje, Hiber Calle, Rosio Buitrago, François Noireau, and Simone Frédérique Brenière, Institut de Recherche pour le Développement (IRD), La Paz, Bolivia, E-mails: etienne.waleckx@ird.fr, stephanie.depickere@gmail.com, renabacci2@hotmail.com, aliagaclau@yahoo.es, e_marcelo_monje_salazar@hotmail.com, raul_lupita@hotmail.com, rosiob2002@yahoo.com, francois.noireau@ird.fr, and frederique.breniere@ird.fr.

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