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Artículo

Triatominae of the semi-arid Chaco in Central Argentina

Cardozo, MiriamIcon ; Fiad, Federico Gastón; Crocco, Liliana Beatriz; Gorla, David EladioIcon
Fecha de publicación: 12/2021
Editorial: Elsevier Science
Revista: Acta Tropica
ISSN: 0001-706X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Zoología, Ornitología, Entomología, Etología

Resumen

The epidemiological scenario in central Argentinian Chaco region shows persistence of Triatoma infestans domestic populations in endemic areas, with control interventions historically affected by the economic instability of the region. Considering this situation, we aimed to (i) update the information regarding to the diversity of triatomines present in domestic, peridomestic and sylvatic environments in departments historically endemic of the Chaco region, (ii) to report the occurrence of secondary vectors of Chagas disease invading domestic environments and (iii) to discuss the possible sources of dispersal of these sylvatic species towards anthropic habitats. Between November 2017 and March 2020, we visited fourteen rural communities of northwest Córdoba province (central Argentina). Entomological data were collected through community vector surveillance in domiciles, active search in peridomiciles and the use of light and yeast traps in sylvatic environments. Seven Triatominae species were captured invading domiciles (T. guasayana, T. garciabesi, T. platensis, T. delpontei, T. breyeri, Panstrongylus guentheri and T. infestans). T. guasayana and T. garciabesi were the species with the highest number of captures. The 32% of the peridomiciles registered infestation with T. infestans (n = 355), mostly in chicken coops and goat pens. In sylvatic environments, T. garciabesi, T. guasayana, T. infestans and P. guentheri werecollected. Only one adult specimen of T. infestans was positive for the presence of Trypanosoma cruzi. Our results suggest that the persistence of T. infestans populations in peridomiciles continues to be a serious challenge for control programs, whereas the finding of secondary vectors of Chagas disease actively invading domiciles emphasizes the need to implement new strategies for entomological surveillance.
Palabras clave: CHACO REGION , TRIATOMINAE , CHAGAS DISEASE , TRIATOMA INFESTANS , SYLVATIC TRIATOMINES
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/154504
URL: https://www.sciencedirect.com/science/article/pii/S0001706X21003375
DOI: http://dx.doi.org/10.1016/j.actatropica.2021.106158
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Articulos(IIBYT) [569]
Articulos de INSTITUTO DE INVESTIGACIONES BIOLOGICAS Y TECNOLOGICAS
Citación
Cardozo, Miriam; Fiad, Federico Gastón; Crocco, Liliana Beatriz; Gorla, David Eladio; Triatominae of the semi-arid Chaco in Central Argentina; Elsevier Science; Acta Tropica; 224; 106158; 12-2021; 1-9
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