| Revista: | Memorias do Instituto Oswaldo Cruz |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000413870 |
| ISSN: | 0074-0276 |
| Autores: | Carbajal de la Fuente, Ana Laura1 Provecho, Yael Mariana1 Fernández, María del Pilar1 Cardinal, Marta Victoria1 Lencina, Patricia2 Spillmann, Cynthia3 Gürtler, Ricardo Esteban1 |
| Instituciones: | 1Universidad de Buenos Aires, Instituto de Ecología, Genética y Evolución de Buenos Aires, Buenos Aires. Argentina 2Ministerio de Salud de la Nación, División de Zoonosis, Vectores y Reservorios, Mendoza. Brasil 3Ministerio de Salud de la Nación, Programa Nacional de Chagas, Córdoba. Argentina |
| Año: | 2017 |
| Periodo: | Oct |
| Volumen: | 112 |
| Número: | 10 |
| Paginación: | 698-708 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | The eco-epidemiological status of Chagas disease in the Monte Desert ecoregion of western Argentina is largely unknown. We investigated the environmental and socio-demographic determinants of house infestation with Triatoma infestans, bug abundance, vector infection with Trypanosoma cruzi and host-feeding sources in a well-defined rural area of Lavalle Department in the Mendoza province. METHODS Technical personnel inspected 198 houses for evidence of infestation with T. infestans, and the 76 houses included in the current study were re-inspected. In parallel with the vector survey, an environmental and socio-demographic survey was also conducted. Univariate risk factor analysis for domiciliary infestation was carried out using Firth penalised logistic regression. We fitted generalised linear models for house infestation and bug abundance. Blood meals were tested with a direct ELISA assay, and T. cruzi infection was determined using a hot-start polymerase chain reaction (PCR) targeting the kinetoplast minicircle (kDNA-PCR). FINDINGS The households studied included an aged population living in precarious houses whose main economic activities included goat husbandry. T. infestans was found in 21.2% of 198 houses and in 55.3% of the 76 re-inspected houses. Peridomestic habitats exhibited higher infestation rates and bug abundances than did domiciles, and goat corrals showed high levels of infestation. The main host-feeding sources were goats. Vector infection was present in 10.2% of domiciles and 3.2% of peridomiciles. Generalised linear models showed that peridomestic infestation was positively and significantly associated with the presence of mud walls and the abundance of chickens and goats, and bug abundance increased with the number of all hosts except rabbits. MAIN CONCLUSIONS We highlight the relative importance of specific peridomestic structures (i.e., goat corrals and chicken coops) associated with construc |
| Disciplinas: | Medicina, Biología |
| Palabras clave: | Salud pública, Insectos, Enfermedad de Chagas, Ecoepidemiología, Vectores biológicos, Triatoma infestans, Argentina |
| Keyword: | Medicine, Biology, Public health, Insects, Chagas disease, Ecoepidemiology, Biological vectors, Triatoma infestans, Argentina |
| Texto completo: | Texto completo (Ver HTML) |
