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

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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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Autores principales: Gurtler, Ricardo Esteban, Kravetz, Fernando O., Lauricella, Marta Alicia, Wisnivesky Colli, María Cristina
Publicado: 1990
Materias:
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
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00034983_v84_n4_p313_Gurtler
http://hdl.handle.net/20.500.12110/paper_00034983_v84_n4_p313_Gurtler
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00034983_v84_n4_p313_Gurtler
record_format dspace
spelling paper:paper_00034983_v84_n4_p313_Gurtler2023-06-08T14:24:33Z The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model Gurtler, Ricardo Esteban Kravetz, Fernando O. Lauricella, Marta Alicia Wisnivesky Colli, María Cristina 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 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. Fil:Gurtler, R.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kravetz, F.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lauricella, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Wisnivesky-Colli, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1990 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00034983_v84_n4_p313_Gurtler http://hdl.handle.net/20.500.12110/paper_00034983_v84_n4_p313_Gurtler
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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
spellingShingle 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
Gurtler, Ricardo Esteban
Kravetz, Fernando O.
Lauricella, Marta Alicia
Wisnivesky Colli, María Cristina
The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model
topic_facet 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
description 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.
author Gurtler, Ricardo Esteban
Kravetz, Fernando O.
Lauricella, Marta Alicia
Wisnivesky Colli, María Cristina
author_facet Gurtler, Ricardo Esteban
Kravetz, Fernando O.
Lauricella, Marta Alicia
Wisnivesky Colli, María Cristina
author_sort Gurtler, Ricardo Esteban
title The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model
title_short The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model
title_full The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model
title_fullStr The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model
title_full_unstemmed The prevalence of Trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: A predictive model
title_sort prevalence of trypanosoma cruzi and the demography of dog populations after insecticidal spraying of houses: a predictive model
publishDate 1990
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00034983_v84_n4_p313_Gurtler
http://hdl.handle.net/20.500.12110/paper_00034983_v84_n4_p313_Gurtler
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