The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model

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 amon...

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Autor principal: Gürtler, Ricardo Esteban
Otros Autores: Kravetz, F.O, Petersen, R.M, Lauricella, M.A, Wisnivesky-Colli, C.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1990
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Acceso en línea:Registro en Scopus
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100 1 |a  Gürtler, Ricardo Esteban 
245 1 4 |a The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model 
260 |c 1990 
506 |2 openaire  |e Política editorial 
520 3 |a 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.  |l eng 
593 |a 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 
651 4 |a ARGENTINA 
690 1 0 |a ANIMAL MODEL 
690 1 0 |a ARTICLE 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a DOG 
690 1 0 |a ETHNIC OR RACIAL ASPECTS 
690 1 0 |a HUMAN 
690 1 0 |a METHODOLOGY 
690 1 0 |a MORTALITY 
690 1 0 |a NONHUMAN 
690 1 0 |a PARASITE PREVALENCE 
690 1 0 |a PROTOZOON 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a ZOONOSIS 
690 1 0 |a ANIMALIA 
690 1 0 |a CANIS FAMILIARIS 
690 1 0 |a CANIS LUPUS 
690 1 0 |a PROTOZOA 
690 1 0 |a TRYPANOSOMA 
690 1 0 |a TRYPANOSOMA CRUZI 
700 1 |a Kravetz, F.O. 
700 1 |a Petersen, R.M. 
700 1 |a Lauricella, M.A. 
700 1 |a Wisnivesky-Colli, C. 
773 0 |d 1990  |g v. 84  |h pp. 313-323  |k n. 4  |p ANN. TROP. MED. PARASITOL.  |x 00034983  |w (AR-BaUEN)CENRE-3707  |t Annals of Tropical Medicine and Parasitology 
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