Microcavia australis (Caviidae, Rodentia), a new highly competent host of Trypanosoma cruzi I in rural communities of northwestern Argentina

Rodents are well-known hosts of Trypanosoma cruzi but little is known on the role of some caviomorph rodents. We assessed the occurrence and prevalence of T. cruzi infection in Microcavia australis ("southern mountain, desert or small cavy") and its infectiousness to the vector Triatoma in...

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Autor principal: Cecere, M.C
Otros Autores: Cardinal, M.V, Arrabal, J.P, Moreno, C., Gürtler, Ricardo Esteban
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Elsevier 2015
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100 1 |a Cecere, M.C. 
245 1 0 |a Microcavia australis (Caviidae, Rodentia), a new highly competent host of Trypanosoma cruzi I in rural communities of northwestern Argentina 
260 |b Elsevier  |c 2015 
270 1 0 |m Cecere, M.C.; Laboratorio de Eco-Epidemiología, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ing. Guiraldes 2160, Argentina 
504 |a Abrahan, L.B., Dujardin, J.P., Gorla, D.E., Catalá, S.S., Dispersal of Triatoma infestans and other Triatominae species in the arid Chaco of Argentina (2011) Mem. Inst. Oswaldo Cruz, 106, pp. 232-239 
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504 |a Maffey, L., Cardinal, M.V., Ordoñez-Krasnowski, P.C., Lanati, L.A., Lauricella, M.A., Schijman, A.G., Direct molecular identification of Trypanosoma cruzi Discrete Typing Units in domestic and peridomestic Triatoma infestans and Triatoma sordida from the Argentine Chaco (2012) Parasitology, 139, pp. 1570-1579 
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506 |2 openaire  |e Política editorial 
520 3 |a Rodents are well-known hosts of Trypanosoma cruzi but little is known on the role of some caviomorph rodents. We assessed the occurrence and prevalence of T. cruzi infection in Microcavia australis ("southern mountain, desert or small cavy") and its infectiousness to the vector Triatoma infestans in four rural communities of Tafí del Valle department, northwestern Argentina. Parasite detection was performed by xenodiagnosis and polymerase chain reaction amplification of the hyper-variable region of kinetoplast DNA minicircles of T. cruzi (kDNA-PCR) from blood samples. A total of 51 cavies was captured in traps set up along cavy paths in peridomestic dry-shrub fences located between 25 and 85. m from the nearest domicile. We document the first record of M. australis naturally infected by T. cruzi. Cavies presented a very high prevalence of infection (46.3%; 95% confidence interval, CI. = 33.0-59.6%). Only one (4%) of 23 cavies negative by xenodiagnosis was found infected by kDNA-PCR. TcI was the only discrete typing unit identified in 12 cavies with a positive xenodiagnosis. The infectiousness to T. infestans of cavies positive by xenodiagnosis or kDNA-PCR was very high (mean, 55.8%; CI. = 48.4-63.1%) and exceeded 80% in 44% of the hosts. Cavies are highly-competent hosts of T. cruzi in peridomestic habitats near human dwellings in rural communities of Tucumán province in northwestern Argentina. © 2014.  |l eng 
536 |a Detalles de la financiación: Ministry of National Guard Health Affairs 
536 |a Detalles de la financiación: Universidad de Buenos Aires 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas 
536 |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica, PICT 
536 |a Detalles de la financiación: Masonic Cancer Center, University of Minnesota 
536 |a Detalles de la financiación: We are grateful to the technical staff of CDCP of Tucumán for field assistance; Marcela Orozco and Natalia Macchiaverna for laboratory assistance; all local residents of these communities, particularly to Costilla (Simón, Pascuala, Vicente, Mercedes, Dina) and González (Chula) families who kindly shared their homes and knowledge. This study was supported by awards from the Consejo Nacional de Investigación Científicas y Técnicas (CONICET) and University of Buenos Aires to MCC, and Agencia Nacional de Promoción Científica y Tecnológica (PICT and PICTO-Glaxo) to REG. MCC, MVC and REG are members of CONICET Researcher's Career. The founders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. JP Arrabal was supported by Oñativia-Carrillo fellowship from the National Health Ministry from Argentina. Appendix A 
593 |a Laboratory of Eco-Epidemiology, Department of Ecology, Genetics and Evolution, Universidad de Buenos Aires-IEGEBA (CONICET-UBA), Buenos Aires, Argentina 
593 |a Instituto Nacional de Medicina Tropical-Ministerio de Salud (INMeT), Neuquén y Jujuy s/n, 3370 Puerto Iguazú, Misiones, Argentina 
593 |a Coordinación Nacional de Control de Vectores (CNCV), Italia 1971 San Miguel de Tucumán, Tucumán, Argentina 
651 4 |a ARGENTINA 
651 4 |a ARGENTINA 
651 4 |a TUCUMAN 
651 4 |a ARGENTINA 
690 1 0 |a CAVIES 
690 1 0 |a INFECTIOUSNESS 
690 1 0 |a MOLECULAR DIAGNOSIS 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a DISEASE VECTOR 
690 1 0 |a HOST 
690 1 0 |a INFECTIOUS DISEASE 
690 1 0 |a PARASITE 
690 1 0 |a RODENT 
690 1 0 |a RURAL AREA 
690 1 0 |a TRYPANOSOMIASIS 
690 1 0 |a ADULT 
690 1 0 |a ARTICLE 
690 1 0 |a BLOOD SAMPLING 
690 1 0 |a BODY MASS 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a CONTROLLED STUDY 
690 1 0 |a CROSS-SECTIONAL STUDY 
690 1 0 |a DISEASE ASSOCIATION 
690 1 0 |a DNA STRUCTURE 
690 1 0 |a FEMALE 
690 1 0 |a GENE AMPLIFICATION 
690 1 0 |a HABITAT 
690 1 0 |a HOST COMPETENCE 
690 1 0 |a HOST PARASITE INTERACTION 
690 1 0 |a HYPER VARIABLE REGION 
690 1 0 |a JUVENILE 
690 1 0 |a KINETOPLAST 
690 1 0 |a MALE 
690 1 0 |a MICROCAVIA AUSTRALIS 
690 1 0 |a NONHUMAN 
690 1 0 |a PARASITE DETECTION 
690 1 0 |a PARASITE EXAMINATION 
690 1 0 |a PARASITE PREVALENCE 
690 1 0 |a PARASITE TRANSMISSION 
690 1 0 |a PARASITE VIRULENCE 
690 1 0 |a POLYMERASE CHAIN REACTION 
690 1 0 |a RODENT 
690 1 0 |a RURAL AREA 
690 1 0 |a TRIATOMA INFESTANS 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a XENODIAGNOSIS 
690 1 0 |a ANIMAL 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a CLINICAL TRIAL 
690 1 0 |a DISEASE CARRIER 
690 1 0 |a GENETICS 
690 1 0 |a HUMAN 
690 1 0 |a ISOLATION AND PURIFICATION 
690 1 0 |a MULTICENTER STUDY 
690 1 0 |a PARASITOLOGY 
690 1 0 |a PREVALENCE 
690 1 0 |a RODENT 
690 1 0 |a RODENT DISEASES 
690 1 0 |a RURAL POPULATION 
690 1 0 |a TRANSMISSION 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a VETERINARY 
690 1 0 |a ZOONOSIS 
690 1 0 |a TAFI DEL VALLE 
690 1 0 |a CAVIIDAE 
690 1 0 |a MICROCAVIA AUSTRALIS 
690 1 0 |a RODENTIA 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a KINETOPLAST DNA 
690 1 0 |a ANIMALS 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a CROSS-SECTIONAL STUDIES 
690 1 0 |a DISEASE VECTORS 
690 1 0 |a DNA, KINETOPLAST 
690 1 0 |a FEMALE 
690 1 0 |a HUMANS 
690 1 0 |a MALE 
690 1 0 |a POLYMERASE CHAIN REACTION 
690 1 0 |a PREVALENCE 
690 1 0 |a RODENT DISEASES 
690 1 0 |a RODENTIA 
690 1 0 |a RURAL POPULATION 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a ZOONOSES 
700 1 |a Cardinal, M.V. 
700 1 |a Arrabal, J.P. 
700 1 |a Moreno, C. 
700 1 |a Gürtler, Ricardo Esteban 
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