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Abstract:

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.

Registro:

Documento: Artículo
Título:Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina
Autor:Gürtler, R.E.; Cecere, M.C.; Lauricella, M.A.; Cardinal, M.V.; Kitron, U.; Cohen, J.E.
Filiación:Laboratorio de Eco-Epidemiología, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Instituto Nacional de Parasitología Dr. Mario Fatala Chaben, Paseo Colón 568, 1032 Buenos Aires, Argentina
Division of Epidemiology and Preventive Medicine, Department of Veterinary Pathobiology, University of Illinois, Urbana-Champaign, 2001 South Lincoln Avenue, Urbana, IL 61802, United States
Laboratory of Populations, Rockefeller and Columbia Universities, Box 20, 1230 York Ave., New York, NY 10021-6399, United States
Departamento de Ecología, Genética Y Evolución, FCEN-UBA, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave: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
Año:2007
Volumen:134
Número:1
Página de inicio:69
Página de fin:82
DOI: http://dx.doi.org/10.1017/S0031182006001259
Título revista:Parasitology
Título revista abreviado:Parasitology
ISSN:00311820
CODEN:PARAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00311820_v134_n1_p69_Gurtler

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Citas:

---------- APA ----------
Gürtler, R.E., Cecere, M.C., Lauricella, M.A., Cardinal, M.V., Kitron, U. & Cohen, J.E. (2007) . Domestic dogs and cats as sources of Trypanosoma cruzi infection in rural northwestern Argentina. Parasitology, 134(1), 69-82.
http://dx.doi.org/10.1017/S0031182006001259
---------- CHICAGO ----------
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" . Parasitology 134, no. 1 (2007) : 69-82.
http://dx.doi.org/10.1017/S0031182006001259
---------- MLA ----------
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" . Parasitology, vol. 134, no. 1, 2007, pp. 69-82.
http://dx.doi.org/10.1017/S0031182006001259
---------- VANCOUVER ----------
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. Parasitology. 2007;134(1):69-82.
http://dx.doi.org/10.1017/S0031182006001259