Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina
The reservoir capacity of domestic cats and dogs for Trypanosoma cruzi infection and the host-feeding patterns of domestic Triatoma infestans were assessed longitudinally in 2 infested rural villages in north-western Argentina. A total of 86 dogs and 38 cats was repeatedly examined for T. cruzi infe...
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todo:paper_00311820_v134_n1_p69_Gurtler2023-10-03T14:41:14Z Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina Gürtler, R.E. Cecere, M.C. Lauricella, M.A. Cardinal, M.V. Kitron, U. Cohen, J.E. Cats Chagas disease Dogs Host-feeding Incidence Infectiousness Surveillance Triatoma infestans Triatomine bugs Trypanosoma cruzi age distribution Argentina article cat Chagas disease dog domestic animal feeding female health survey host range household human male nonhuman parasite transmission parasite virulence prevalence priority journal rural area serology Triatoma infestans Trypanosoma cruzi xenodiagnosis Age Factors Animals Argentina Cat Diseases Cats Chagas Disease Child Disease Reservoirs Dog Diseases Dogs Female Humans Insect Vectors Longitudinal Studies Male Prevalence Questionnaires Rural Population Triatoma Trypanosoma cruzi Xenodiagnosis Canis familiaris Felis catus Gallus gallus Triatoma infestans Trypanosoma cruzi The reservoir capacity of domestic cats and dogs for Trypanosoma cruzi infection and the host-feeding patterns of domestic Triatoma infestans were assessed longitudinally in 2 infested rural villages in north-western Argentina. A total of 86 dogs and 38 cats was repeatedly examined for T. cruzi infection by serology and/or xenodiagnosis. The composite prevalence of infection in dogs (60%), but not in cats, increased significantly with age and with the domiciliary density of infected T. infestans. Dogs and cats had similarly high forces of infection, prevalence of infectious hosts (41-42%), and infectiousness to bugs at a wide range of infected bug densities. The infectiousness to bugs of seropositive dogs declined significantly with increasing dog age and was highly aggregated. Individual dog infectiousness to bugs was significantly autocorrelated over time. Domestic T. infestans fed on dogs showed higher infection prevalence (49%) than those fed on cats (39%), humans (38%) or chickens (29%) among 1085 bugs examined. The basic reproduction number of T. cruzi in dogs was at least 8.2. Both cats and dogs are epidemiologically important sources of infection for bugs and householders, dogs nearly 3 times more than cats. © 2006 Cambridge University Press. Fil:Gürtler, R.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cecere, M.C. 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:Cardinal, M.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00311820_v134_n1_p69_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 |
Cats Chagas disease Dogs Host-feeding Incidence Infectiousness Surveillance Triatoma infestans Triatomine bugs Trypanosoma cruzi age distribution Argentina article cat Chagas disease dog domestic animal feeding female health survey host range household human male nonhuman parasite transmission parasite virulence prevalence priority journal rural area serology Triatoma infestans Trypanosoma cruzi xenodiagnosis Age Factors Animals Argentina Cat Diseases Cats Chagas Disease Child Disease Reservoirs Dog Diseases Dogs Female Humans Insect Vectors Longitudinal Studies Male Prevalence Questionnaires Rural Population Triatoma Trypanosoma cruzi Xenodiagnosis Canis familiaris Felis catus Gallus gallus Triatoma infestans Trypanosoma cruzi |
spellingShingle |
Cats Chagas disease Dogs Host-feeding Incidence Infectiousness Surveillance Triatoma infestans Triatomine bugs Trypanosoma cruzi age distribution Argentina article cat Chagas disease dog domestic animal feeding female health survey host range household human male nonhuman parasite transmission parasite virulence prevalence priority journal rural area serology Triatoma infestans Trypanosoma cruzi xenodiagnosis Age Factors Animals Argentina Cat Diseases Cats Chagas Disease Child Disease Reservoirs Dog Diseases Dogs Female Humans Insect Vectors Longitudinal Studies Male Prevalence Questionnaires Rural Population Triatoma Trypanosoma cruzi Xenodiagnosis Canis familiaris Felis catus Gallus gallus Triatoma infestans Trypanosoma cruzi Gürtler, R.E. Cecere, M.C. Lauricella, M.A. Cardinal, M.V. Kitron, U. Cohen, J.E. Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina |
topic_facet |
Cats Chagas disease Dogs Host-feeding Incidence Infectiousness Surveillance Triatoma infestans Triatomine bugs Trypanosoma cruzi age distribution Argentina article cat Chagas disease dog domestic animal feeding female health survey host range household human male nonhuman parasite transmission parasite virulence prevalence priority journal rural area serology Triatoma infestans Trypanosoma cruzi xenodiagnosis Age Factors Animals Argentina Cat Diseases Cats Chagas Disease Child Disease Reservoirs Dog Diseases Dogs Female Humans Insect Vectors Longitudinal Studies Male Prevalence Questionnaires Rural Population Triatoma Trypanosoma cruzi Xenodiagnosis Canis familiaris Felis catus Gallus gallus Triatoma infestans Trypanosoma cruzi |
description |
The reservoir capacity of domestic cats and dogs for Trypanosoma cruzi infection and the host-feeding patterns of domestic Triatoma infestans were assessed longitudinally in 2 infested rural villages in north-western Argentina. A total of 86 dogs and 38 cats was repeatedly examined for T. cruzi infection by serology and/or xenodiagnosis. The composite prevalence of infection in dogs (60%), but not in cats, increased significantly with age and with the domiciliary density of infected T. infestans. Dogs and cats had similarly high forces of infection, prevalence of infectious hosts (41-42%), and infectiousness to bugs at a wide range of infected bug densities. The infectiousness to bugs of seropositive dogs declined significantly with increasing dog age and was highly aggregated. Individual dog infectiousness to bugs was significantly autocorrelated over time. Domestic T. infestans fed on dogs showed higher infection prevalence (49%) than those fed on cats (39%), humans (38%) or chickens (29%) among 1085 bugs examined. The basic reproduction number of T. cruzi in dogs was at least 8.2. Both cats and dogs are epidemiologically important sources of infection for bugs and householders, dogs nearly 3 times more than cats. © 2006 Cambridge University Press. |
format |
JOUR |
author |
Gürtler, R.E. Cecere, M.C. Lauricella, M.A. Cardinal, M.V. Kitron, U. Cohen, J.E. |
author_facet |
Gürtler, R.E. Cecere, M.C. Lauricella, M.A. Cardinal, M.V. Kitron, U. Cohen, J.E. |
author_sort |
Gürtler, R.E. |
title |
Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina |
title_short |
Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina |
title_full |
Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina |
title_fullStr |
Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina |
title_full_unstemmed |
Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina |
title_sort |
domestic dogs and cats as sources of trypanosoma cruzi infection in rural northwestern argentina |
url |
http://hdl.handle.net/20.500.12110/paper_00311820_v134_n1_p69_Gurtler |
work_keys_str_mv |
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