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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ftunibueairesbd:paper:paper_00034983_v84_n4_p313_Gurtler 2023-05-15T15:50:44+02:00 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 1990 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00034983_v84_n4_p313_Gurtler https://hdl.handle.net/20.500.12110/paper_00034983_v84_n4_p313_Gurtler unknown 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 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 1990 ftunibueairesbd https://doi.org/20.500.12110/paper_00034983_v84_n4_p313_Gurtler 2023-02-16T02:02:12Z 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. Other/Unknown Material Canis lupus Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) Argentina |
institution |
Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
unknown |
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 |
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 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 |
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. 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. |
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 https://hdl.handle.net/20.500.12110/paper_00034983_v84_n4_p313_Gurtler |
geographic |
Argentina |
geographic_facet |
Argentina |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_relation |
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 |
op_doi |
https://doi.org/20.500.12110/paper_00034983_v84_n4_p313_Gurtler |
_version_ |
1766385735821164544 |