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Artículo

Molecular epidemiology of domestic and sylvatic Trypanosoma cruzi infection in rural northwestern Argentina

Cardinal, Marta VictoriaIcon ; Lauricella, Marta A.; Ceballos, Leonardo A.; Lanati, Leonardo; Marcet, Paula LorenaIcon ; Levin, Mariano JorgeIcon ; Kitron, Uriel D.; Gurtler, Ricardo EstebanIcon ; Schijman, Alejandro GabrielIcon
Fecha de publicación: 11/2008
Editorial: Elsevier
Revista: International Journal for Parasitology
ISSN: 0020-7519
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Zoología, Ornitología, Entomología, Etología

Resumen

Genetic diversity of Trypanosoma cruzi populations and parasite transmission dynamics have been well documented throughout the Americas, but few studies have been conducted in the Gran Chaco ecoregion, one of the most highly endemic areas for Chagas disease, caused by T. cruzi. In this study, we assessed the distribution of T. cruzi lineages (identified by PCR strategies) in Triatoma infestans, domestic dogs, cats, humans and sylvatic mammals from two neighbouring rural areas with different histories of transmission and vector control in northern Argentina. Lineage II predominated amongst the 99 isolates characterised and lineage I amongst the six isolates obtained from sylvatic mammals. T. cruzi lineage IIe predominated in domestic habitats; it was found in 87% of 54 isolates from Tr. infestans, in 82% of 33 isolates from dogs, and in the four cats found infected. Domestic and sylvatic cycles overlapped in the study area in the late 1980s, when intense domestic transmission occurred, and still overlap marginally. The introduction of T. cruzi from sylvatic into domestic habitats is likely to occur very rarely in the current epidemiological context. The household distribution of T. cruzi lineages showed that Tr. infestans, dogs and cats from a given house compound shared the same parasite lineage in most cases. Based on molecular evidence, this result lends further support to the importance of dogs and cats as domestic reservoir hosts of T. cruzi. We believe that in Argentina, this is the first time that lineage IIc has been isolated from naturally infected domestic dogs and Tr. infestans.
Palabras clave: Cats , Chagas Disease , Dogs , Lineage , Surveillance , Triatoma Infestans , Trypanosoma Cruzi , Vector Control
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info:eu-repo/semantics/openAccess 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/11336/79696
URL: https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18585717/
DOI: http://dx.doi.org/10.1016/j.ijpara.2008.04.010
URL: https://www.sciencedirect.com/science/article/pii/S0020751908001860
Colecciones
Articulos(IEGEBA)
Articulos de INSTITUTO DE ECOLOGIA, GENETICA Y EVOLUCION DE BS. AS
Articulos(INGEBI)
Articulos de INST.DE INVEST.EN ING.GENETICA Y BIOL.MOLECULAR "DR. HECTOR N TORRES"
Citación
Cardinal, Marta Victoria; Lauricella, Marta A.; Ceballos, Leonardo A.; Lanati, Leonardo; Marcet, Paula Lorena; et al.; Molecular epidemiology of domestic and sylvatic Trypanosoma cruzi infection in rural northwestern Argentina; Elsevier; International Journal for Parasitology; 38; 13; 11-2008; 1533-1543
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