Feeding patterns of Triatoma vitticeps in the State of Rio de Janeiro, Brazil
OBJECTIVE: Feeding patterns of triatomines have contributed to elucidate its biology. Triatoma vitticeps, naturally infected with T. cruzi, has been found in domiciles. Its behavior and epidemiological patterns were investigated. METHODS: One-hundred and twenty two specimens of T. vitticeps were cap...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2000 |
| País: | Brasil |
| Institución: | Universidade de São Paulo (USP) |
| Repositorio: | Revista de Saúde Pública |
| Idioma: | portugués |
| OAI Identifier: | oai:revistas.usp.br:article/25032 |
| Acceso en línea: | https://www.revistas.usp.br/rsp/article/view/25032 |
| Access Level: | acceso abierto |
| Palabra clave: | Hábitos alimentares Triatoma^i2^sparasitolo Trypanosoma cruzi^i2^sisolamento e purifica Insetos vetores Ecologia de vetores Triatoma vitticeps Food habits Triatoma^i1^sparasitol Trypanosoma cruzi^i1^sisolation and purificat Insect vectors Ecology of vectors |
| Sumario: | OBJECTIVE: Feeding patterns of triatomines have contributed to elucidate its biology. Triatoma vitticeps, naturally infected with T. cruzi, has been found in domiciles. Its behavior and epidemiological patterns were investigated. METHODS: One-hundred and twenty two specimens of T. vitticeps were captured from February 1989 to April 1993 in two areas of Triunfo municipality, a subdistrict of Santa Maria Madalena municipal district, State of Rio de Janeiro, Brazil. The insects were dissected and their intestinal contents were removed and tested. It was used antisera from: man, cow, horse, dog, pig, armadillo, opossum, rodent, and bird. RESULTS: From the total analyzed, 79 were positive and 43 were negative to the nine antisera tested: armadillo (30.3%) >; human and pig (13.1%) >; bird and dog (11.5%) >; horse (5.7%) >; opossum (4.9%) >; rodent (4.1%) >; cow (3.3%). Blood meals ranged from 0 to 4 and 6 in the following distribution: 0 = 25.41%; 1 = 45.08%; 2 = 10.66%; 3 = 6.56%; 4 = 1.64%, and 6 = 0.82%. Nine of the 122 insects captured were not examined, 74 (65.54%) were positive for T. cruzi infection and 39 (34.51%) were negative. CONCLUSIONS: These results identified the T. vitticeps as being a sylvatic species and trypanosomiasis as being an enzootic disease. Epidemiological vigilance will be important to provide more information regarding the behavior of the species |
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