New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study

Autores
Orozco, Maria Marcela; Enriquez, Gustavo Fabián; Alvarado Otegui, Julián A.; Cardinal, Marta Victoria; Schijman, Alejandro Gabriel; Kitron, Uriel; Gurtler, Ricardo Esteban
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A four-year longitudinal study was conducted to investigate the structure of sylvatic transmission cycles of Trypanosoma cruzi, assess reservoir host competence and identify parasite discrete typing units (DTUs) in a disturbed rural area of the humid Argentinean Chaco. Among 190 mammals examined by xenodiagnosis and polymerase chain reaction amplification, the composite prevalence of infection was substantially higher in Dasypus novemcinctus armadillos (57.7%) and Didelphis albiventris opossums (38.1%) than in Euphractus sexcinctus (20.0%), Tolypeutes matacus (12.5%) and Chaetophractus vellerosus (6.3%) armadillos. T. cruzi was detected for the first time in Thylamys pusilla opossums and in two unidentified small rodents. Infection was spatially aggregated only in armadillos. All Didelphis were infected with T. cruzi I and all armadillo species with T. cruzi III, implying two distinct sylvatic cycles with no inputs from the domestic cycle. Dasypus armadillos and Didelphis opossums were much more infectious to vectors than other armadillos, opossums or rodents.
Fil: Orozco, Maria Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Enriquez, Gustavo Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Alvarado Otegui, Julián A.. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Ecologia, Genetica y Evolucion. Laboratorio de Eco - Epidemiología; Argentina
Fil: Cardinal, Marta Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Schijman, Alejandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular; Argentina
Fil: Kitron, Uriel. University Of Emory; Estados Unidos
Fil: Gurtler, Ricardo Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Materia
Trypanosoma Cruzi
Sylvatic Cycles
Reservoir Host Competence
Parasite Discrete Typing Units
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/4333
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/4333
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal studyOrozco, Maria MarcelaEnriquez, Gustavo FabiánAlvarado Otegui, Julián A.Cardinal, Marta VictoriaSchijman, Alejandro GabrielKitron, UrielGurtler, Ricardo EstebanTrypanosoma CruziSylvatic CyclesReservoir Host CompetenceParasite Discrete Typing Unitshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1A four-year longitudinal study was conducted to investigate the structure of sylvatic transmission cycles of Trypanosoma cruzi, assess reservoir host competence and identify parasite discrete typing units (DTUs) in a disturbed rural area of the humid Argentinean Chaco. Among 190 mammals examined by xenodiagnosis and polymerase chain reaction amplification, the composite prevalence of infection was substantially higher in Dasypus novemcinctus armadillos (57.7%) and Didelphis albiventris opossums (38.1%) than in Euphractus sexcinctus (20.0%), Tolypeutes matacus (12.5%) and Chaetophractus vellerosus (6.3%) armadillos. T. cruzi was detected for the first time in Thylamys pusilla opossums and in two unidentified small rodents. Infection was spatially aggregated only in armadillos. All Didelphis were infected with T. cruzi I and all armadillo species with T. cruzi III, implying two distinct sylvatic cycles with no inputs from the domestic cycle. Dasypus armadillos and Didelphis opossums were much more infectious to vectors than other armadillos, opossums or rodents.Fil: Orozco, Maria Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Enriquez, Gustavo Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Alvarado Otegui, Julián A.. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Ecologia, Genetica y Evolucion. Laboratorio de Eco - Epidemiología; ArgentinaFil: Cardinal, Marta Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Schijman, Alejandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular; ArgentinaFil: Kitron, Uriel. University Of Emory; Estados UnidosFil: Gurtler, Ricardo Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaAmerican Society of Tropical Medicine and Hygiene2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4333Orozco, Maria Marcela; Enriquez, Gustavo Fabián; Alvarado Otegui, Julián A.; Cardinal, Marta Victoria; Schijman, Alejandro Gabriel; et al.; New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study; American Society of Tropical Medicine and Hygiene; American Journal of Tropical Medicine and Hygiene; 88; 5; 4-2013; 872-8820002-9637enginfo:eu-repo/semantics/altIdentifier/doi/10.4269%2Fajtmh.12-0519info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:01:15Zoai:ri.conicet.gov.ar:11336/4333instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:01:16.279CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study
title New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study
spellingShingle New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study
Orozco, Maria Marcela
Trypanosoma Cruzi
Sylvatic Cycles
Reservoir Host Competence
Parasite Discrete Typing Units
title_short New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study
title_full New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study
title_fullStr New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study
title_full_unstemmed New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study
title_sort New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study
dc.creator.none.fl_str_mv Orozco, Maria Marcela
Enriquez, Gustavo Fabián
Alvarado Otegui, Julián A.
Cardinal, Marta Victoria
Schijman, Alejandro Gabriel
Kitron, Uriel
Gurtler, Ricardo Esteban
author Orozco, Maria Marcela
author_facet Orozco, Maria Marcela
Enriquez, Gustavo Fabián
Alvarado Otegui, Julián A.
Cardinal, Marta Victoria
Schijman, Alejandro Gabriel
Kitron, Uriel
Gurtler, Ricardo Esteban
author_role author
author2 Enriquez, Gustavo Fabián
Alvarado Otegui, Julián A.
Cardinal, Marta Victoria
Schijman, Alejandro Gabriel
Kitron, Uriel
Gurtler, Ricardo Esteban
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Trypanosoma Cruzi
Sylvatic Cycles
Reservoir Host Competence
Parasite Discrete Typing Units
topic Trypanosoma Cruzi
Sylvatic Cycles
Reservoir Host Competence
Parasite Discrete Typing Units
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A four-year longitudinal study was conducted to investigate the structure of sylvatic transmission cycles of Trypanosoma cruzi, assess reservoir host competence and identify parasite discrete typing units (DTUs) in a disturbed rural area of the humid Argentinean Chaco. Among 190 mammals examined by xenodiagnosis and polymerase chain reaction amplification, the composite prevalence of infection was substantially higher in Dasypus novemcinctus armadillos (57.7%) and Didelphis albiventris opossums (38.1%) than in Euphractus sexcinctus (20.0%), Tolypeutes matacus (12.5%) and Chaetophractus vellerosus (6.3%) armadillos. T. cruzi was detected for the first time in Thylamys pusilla opossums and in two unidentified small rodents. Infection was spatially aggregated only in armadillos. All Didelphis were infected with T. cruzi I and all armadillo species with T. cruzi III, implying two distinct sylvatic cycles with no inputs from the domestic cycle. Dasypus armadillos and Didelphis opossums were much more infectious to vectors than other armadillos, opossums or rodents.
Fil: Orozco, Maria Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Enriquez, Gustavo Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Alvarado Otegui, Julián A.. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Ecologia, Genetica y Evolucion. Laboratorio de Eco - Epidemiología; Argentina
Fil: Cardinal, Marta Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
Fil: Schijman, Alejandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular; Argentina
Fil: Kitron, Uriel. University Of Emory; Estados Unidos
Fil: Gurtler, Ricardo Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
description A four-year longitudinal study was conducted to investigate the structure of sylvatic transmission cycles of Trypanosoma cruzi, assess reservoir host competence and identify parasite discrete typing units (DTUs) in a disturbed rural area of the humid Argentinean Chaco. Among 190 mammals examined by xenodiagnosis and polymerase chain reaction amplification, the composite prevalence of infection was substantially higher in Dasypus novemcinctus armadillos (57.7%) and Didelphis albiventris opossums (38.1%) than in Euphractus sexcinctus (20.0%), Tolypeutes matacus (12.5%) and Chaetophractus vellerosus (6.3%) armadillos. T. cruzi was detected for the first time in Thylamys pusilla opossums and in two unidentified small rodents. Infection was spatially aggregated only in armadillos. All Didelphis were infected with T. cruzi I and all armadillo species with T. cruzi III, implying two distinct sylvatic cycles with no inputs from the domestic cycle. Dasypus armadillos and Didelphis opossums were much more infectious to vectors than other armadillos, opossums or rodents.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/4333
Orozco, Maria Marcela; Enriquez, Gustavo Fabián; Alvarado Otegui, Julián A.; Cardinal, Marta Victoria; Schijman, Alejandro Gabriel; et al.; New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study; American Society of Tropical Medicine and Hygiene; American Journal of Tropical Medicine and Hygiene; 88; 5; 4-2013; 872-882
0002-9637
url http://hdl.handle.net/11336/4333
identifier_str_mv Orozco, Maria Marcela; Enriquez, Gustavo Fabián; Alvarado Otegui, Julián A.; Cardinal, Marta Victoria; Schijman, Alejandro Gabriel; et al.; New sylvatic hosts of Trypanosoma cruzi and reservoir competence in the humid Argentinean Chaco: A longitudinal study; American Society of Tropical Medicine and Hygiene; American Journal of Tropical Medicine and Hygiene; 88; 5; 4-2013; 872-882
0002-9637
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4269%2Fajtmh.12-0519
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Society of Tropical Medicine and Hygiene
publisher.none.fl_str_mv American Society of Tropical Medicine and Hygiene
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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