Geographic variation of Trypanosoma cruzi discrete typing units from Triatoma infestans at different spatial scales

We assessed the diversity and distribution of Trypanosoma cruzi discrete typing units (DTU) in Triatoma infestans populations and its association with local vector-borne transmission levels at various geographic scales. At a local scale, we found high predominance (92.4%) of TcVI over TcV in 68 micr...

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Autor principal: Fernández, M.D.P
Otros Autores: Cecere, M.C, Lanati, L.A, Lauricella, M.A, Schijman, A.G, Gürtler, Ricardo Esteban, Cardinal, M.V
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Elsevier 2014
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Acceso en línea:Registro en Scopus
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100 1 |a Fernández, M.D.P. 
245 1 0 |a Geographic variation of Trypanosoma cruzi discrete typing units from Triatoma infestans at different spatial scales 
260 |b Elsevier  |c 2014 
270 1 0 |m Cardinal, M.V.; Laboratory of Eco-Epidemiology, Department of Ecology, Genetics and Evolution, Universidad de Buenos Aires-IEGEBA (CONICET-UBA), Buenos Aires, Argentina; email: mvcardinal@ege.fcen.uba.ar 
504 |a Bacigalupo, A., Segovia, V., García, A., Botto-Mahan, C., Ortiz, S., Solari, A., Acuna-Retamar, M., Cattan, P.E., Differential pattern of infection of sylvatic nymphs and domiciliary adults of Triatoma infestans with Trypanosoma cruzi genotypes in Chile (2012) Am. J. Trop. Med. Hyg., 87, pp. 473-480 
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504 |a Cardinal, M.V., Orozco, M.M., Enríquez, G.F., Ceballos, L.A., Gaspe, M.S., Alvarado-Otegui, J.A., Gurevitz, J.M., Enriquez, G.F., Heterogeneities in the eco-epidemiology of Trypanosoma cruzi infection in rural 6 communities of the Argentinean Chaco (2014) Am. J. Trop. Med. Hyg., 90, pp. 1063-1073 
504 |a Cardinal, M.V., Castañera, M.B., Lauricella, M.A., Cecere, M.C., Ceballos, L.A., Vazquez-Prokopec, G.M., Kitron, U., Gürtler, R.E., A prospective study of the effects of sustained vector surveillance following community-wide insecticide application on Trypanosoma cruzi infection of dogs and cats in rural Northwestern Argentina (2006) Am. J. Trop. Med. Hyg., 75, pp. 753-761 
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506 |2 openaire  |e Política editorial 
520 3 |a We assessed the diversity and distribution of Trypanosoma cruzi discrete typing units (DTU) in Triatoma infestans populations and its association with local vector-borne transmission levels at various geographic scales. At a local scale, we found high predominance (92.4%) of TcVI over TcV in 68 microscope-positive T. infestans collected in rural communities in Santiago del Estero province in northern Argentina. TcV was more often found in communities with higher house infestation prevalence compatible with active vector-borne transmission. Humans and dogs were the main bloodmeal sources of the TcV- and TcVI-infected bugs. At a broader scale, the greatest variation in DTU diversity was found within the Argentine Chaco (227 microscope-positive bugs), mainly related to differences in equitability between TcVI and TcV among study areas. At a country-wide level, a meta-analysis of published data revealed clear geographic variations in the distribution of DTUs across countries. A correspondence analysis showed that DTU distributions in domestic T. infestans were more similar within Argentina (dominated by TcVI) and within Bolivia (where TcI and TcV had similar relative frequencies), whereas large heterogeneity was found within Chile. DTU diversity was lower in the western Argentine Chaco region and Paraguay (D= 0.14-0.22) than in the eastern Argentine Chaco, Bolivia and Chile (D= 0.20-0.68). Simultaneous DTU identifications of T. cruzi-infected hosts and triatomines across areas differing in epidemiological status are needed to shed new light on the structure and dynamics of parasite transmission cycles. © 2014 Elsevier B.V.  |l eng 
536 |a Detalles de la financiación: Fundación Bunge y Born, FBB02/04 
536 |a Detalles de la financiación: Universidad de Buenos Aires, 20020100100944 
536 |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica, PICT 2011-2072, PICTO-GLAXO 2011-0062 
536 |a Detalles de la financiación: The authors are grateful to the National Vector Control Program staff from Tucumán and Córdoba, Diego Glaser, Silvana Ferreyra, Mariana Carro and Cristina G. Maidana for field and laboratory assistance. Reference strains of TcI–TcVI were kindly provided by Patricio Diosque, Miguel A. Basombrío and Michel Tibayrenc to A.G.S. This study received financial support from Fundación Bunge y Born (grant number: FBB02/04) (to M.C.C.), University of Buenos Aires (grant number: 20020100100944) and Agencia Nacional de Promoción Científica y Técnica (grant numbers: PICT 2011-2072 and PICTO-GLAXO 2011-0062) (PICT and PICTO-GLAXO) to R.E.G. R.E.G., M.V.C., M.C.C. A.G.S. are members of CONICET Researcher's Career. 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 Parasitología Dr. Mario Fatala Chaben, ANLIS, Buenos Aires, Argentina 
593 |a Laboratorio de Biología Molecular de la Enfermedad de Chagas, Instituto de Investigaciones en Ingeniería Genética, Biología Molecular Dr. Héctor Torres (INGEBI-CONICET), Vuelta de Obligado 2490, Buenos Aires, Argentina 
651 4 |a ARGENTINA 
651 4 |a BOLIVIA 
651 4 |a CHILE 
651 4 |a PARAGUAY 
651 4 |a ARGENTINA 
651 4 |a BOLIVIA 
651 4 |a CHACO [ARGENTINA] 
651 4 |a CHILE 
651 4 |a PARAGUAY 
651 4 |a SANTIAGO DEL ESTERO [ARGENTINA] 
651 4 |a ARGENTINA 
651 4 |a BOLIVIA 
651 4 |a CHILE 
651 4 |a PARAGUAY 
690 1 0 |a DISCRETE TYPING UNITS 
690 1 0 |a DIVERSITY 
690 1 0 |a MOLECULAR EPIDEMIOLOGY 
690 1 0 |a TRIATOMA INFESTANS 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a BIODIVERSITY 
690 1 0 |a DISEASE PREVALENCE 
690 1 0 |a DISEASE TRANSMISSION 
690 1 0 |a EPIDEMIOLOGY 
690 1 0 |a GEOGRAPHICAL VARIATION 
690 1 0 |a MOLECULAR ECOLOGY 
690 1 0 |a PARASITE 
690 1 0 |a PARASITE INFESTATION 
690 1 0 |a PROTOZOAN 
690 1 0 |a RURAL AREA 
690 1 0 |a SPATIAL ANALYSIS 
690 1 0 |a ANIMAL CELL 
690 1 0 |a ARTICLE 
690 1 0 |a CHICKEN 
690 1 0 |a CONTROLLED STUDY 
690 1 0 |a CORRESPONDENCE ANALYSIS 
690 1 0 |a CROSS-SECTIONAL STUDY 
690 1 0 |a DISCRETE TYPING UNIT 
690 1 0 |a DOG 
690 1 0 |a GEOGRAPHICAL VARIATION (SPECIES) 
690 1 0 |a GOAT 
690 1 0 |a HUMAN 
690 1 0 |a INFESTATION 
690 1 0 |a MOLECULAR GENETICS 
690 1 0 |a NONHUMAN 
690 1 0 |a PARASITE TRANSMISSION 
690 1 0 |a PARASITE VECTOR 
690 1 0 |a PREVALENCE 
690 1 0 |a RURAL POPULATION 
690 1 0 |a SPECIES DIVERSITY 
690 1 0 |a SPECIES IDENTIFICATION 
690 1 0 |a TRIATOMA INFESTANS 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a ANIMAL 
690 1 0 |a BIODIVERSITY 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a DISEASE CARRIER 
690 1 0 |a ISOLATION AND PURIFICATION 
690 1 0 |a PARASITOLOGY 
690 1 0 |a TRIATOMA 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a ARTICLE 
690 1 0 |a GENOTYPE 
690 1 0 |a GEOGRAPHIC DISTRIBUTION 
690 1 0 |a MOLECULAR EPIDEMIOLOGY 
690 1 0 |a MOLECULAR TYPING 
690 1 0 |a POLYMERASE CHAIN REACTION 
690 1 0 |a POPULATION DISTRIBUTION 
690 1 0 |a POPULATION DYNAMICS 
690 1 0 |a POPULATION STRUCTURE 
690 1 0 |a SEASONAL VARIATION 
690 1 0 |a ANIMALS 
690 1 0 |a BIODIVERSITY 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a CROSS-SECTIONAL STUDIES 
690 1 0 |a HUMANS 
690 1 0 |a INSECT VECTORS 
690 1 0 |a RURAL POPULATION 
690 1 0 |a TRIATOMA 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a TRIATOMA INFESTANS 
690 1 0 |a TRYPANOSOMA CRUZI 
700 1 |a Cecere, M.C. 
700 1 |a Lanati, L.A. 
700 1 |a Lauricella, M.A. 
700 1 |a Schijman, A.G. 
700 1 |a Gürtler, Ricardo Esteban 
700 1 |a Cardinal, M.V. 
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963 |a VARI