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Abstract:

A three-year demographic and seroparasitological follow-up of the canine population of a rural area of Argentina endemic for Chagas'disease was carried out in order to (a) describe the population dynamics of domestic dogs, and (b) predict the decrease in the prevalence of Trypanosoma cruzi among these reservoirs after indoor spraying of houses with Residual insecticides. For the latter project we designed an age - structured model with a discrete time scale. We assumed a time-dependent exponential decay in the frequency of infected hosts proportional to the host mortality rate, and also assumed that no differential mortality existed between infected and non-infected dogs. Validation of the model was carried out, and yielded an extremely close fit between observed and theoretical values. The relevance of the model as an aid to designing strategies for the control of animal domestic reservoirs of T.cruzi, and the role of dogs as efficient sentinels of re-infestation of an area, are discussed.

Registro:

Documento: Artículo
Título:The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model
Autor:Gurtler, R.E.; Kravetz, F.O.; Petersen, R.M.; Lauricella, M.A.; Wisnivesky-Colli, C.
Filiación:Unidad Ecologia de Reservorios y Vectores de Parasitos, Departamento de Ciencias Biologicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:animal model; Argentina; article; Chagas disease; dog; ethnic or racial aspects; human; methodology; mortality; nonhuman; parasite prevalence; protozoon; Trypanosoma cruzi; zoonosis; Animalia; Canis familiaris; Canis lupus; Protozoa; Trypanosoma; Trypanosoma cruzi
Año:1990
Volumen:84
Número:4
Página de inicio:313
Página de fin:323
DOI: http://dx.doi.org/10.1080/00034983.1990.11812475
Título revista:Annals of Tropical Medicine and Parasitology
Título revista abreviado:ANN. TROP. MED. PARASITOL.
ISSN:00034983
CODEN:ATMPA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00034983_v84_n4_p313_Gurtler

Citas:

---------- APA ----------
Gurtler, R.E., Kravetz, F.O., Petersen, R.M., Lauricella, M.A. & Wisnivesky-Colli, C. (1990) . The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model. Annals of Tropical Medicine and Parasitology, 84(4), 313-323.
http://dx.doi.org/10.1080/00034983.1990.11812475
---------- CHICAGO ----------
Gurtler, R.E., Kravetz, F.O., Petersen, R.M., Lauricella, M.A., Wisnivesky-Colli, C. "The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model" . Annals of Tropical Medicine and Parasitology 84, no. 4 (1990) : 313-323.
http://dx.doi.org/10.1080/00034983.1990.11812475
---------- MLA ----------
Gurtler, R.E., Kravetz, F.O., Petersen, R.M., Lauricella, M.A., Wisnivesky-Colli, C. "The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model" . Annals of Tropical Medicine and Parasitology, vol. 84, no. 4, 1990, pp. 313-323.
http://dx.doi.org/10.1080/00034983.1990.11812475
---------- VANCOUVER ----------
Gurtler, R.E., Kravetz, F.O., Petersen, R.M., Lauricella, M.A., Wisnivesky-Colli, C. The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model. ANN. TROP. MED. PARASITOL. 1990;84(4):313-323.
http://dx.doi.org/10.1080/00034983.1990.11812475