Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia

The role of Triatoma sordida in the domestic transmission of Trypanosoma cruzi was assessed in 7 rural localities in Velasco Province, Department of Santa Cruz, Bolivia. Tri. sordida, the only triatomine species identified in these localities, was found inside 58.0% of houses but not in large number...

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Autor principal: Noireau, F.
Otros Autores: Brenière, F., Ordoñez, J., Cardozo, L., Morochi, W., Gutierrez, T., Bosseno, M.F, Garcia, S., Vargas, F., Yaksic, N., Dujardin, J.P, Peredo, C., Wisnivesky-Colli, C.
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Lenguaje:Inglés
Publicado: Oxford University Press 1997
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030 |a TRSTA 
100 1 |a Noireau, F. 
245 1 0 |a Low probability of transmission of Trypanosoma cruzi to humans by domiciliary Triatoma sordida in Bolivia 
260 |b Oxford University Press  |c 1997 
270 1 0 |m Noireau, F.; ORSTOM, CP9214, La Paz, Bolivia 
506 |2 openaire  |e Política editorial 
504 |a Barretto, M.P., Estudos sôbre reservatórios e vectores silvestres do Trypanosoma cruzi. XXXI. Observações sôbre a associação entre reservatórios e vectores, com especial referênda a regiao nordeste do Estado de São Paulo (1968) Revista Brasileira de Biologia, 28, pp. 481-494 
504 |a Barretto, M.P., Possible role of wild mammals and triatomines in the transmission of Trypanosoma cruzi to man (1976) New Approaches in American Trypanosomiasis Research, pp. 307-316. , Scientific Publication no. 318, Pan-American Health Organization, Washington 
504 |a Breniére, S.F., Carrasco, R., Miguez, H., Lemesre, J.L., Carlier, Y., Comparisons of immunological tests for serodiagnosis of Chagas' disease in Bolivian patients (1984) Tropical and Geographical Medicine, 31, pp. 231-238 
504 |a Brenière, S.F., Bosseno, M.F., Revollo, S., Rivera, M.T., Carlier, Y., Tibayrenc, M., Direct identification of Trypanosoma cruzi natural clones in vectors and mammalian hosts by polymerase chain reaction amplification (1992) American Journal of Tropical Medicine and Hygiene, 46, pp. 335-341 
504 |a Carcavallo, R.V., Canale, D., Martinez, A., Habitats de Triatomineos argentinos y zonas ecológicas donde prevalecen (1988) Chagas (Buenos Aires), 5, pp. 8-17 
504 |a Crocco, L.B., Catalá, S.S., Feeding and defaecation patterns in Triatoma sordida (1996) Memórias Do Instituto Oswaldo Cruz, 91, pp. 409-413 
504 |a Diaz-Ungria, C., Transmission du Trypanosoma cruzi chez les mammifères (1966) Annales de Parasitologie Humaine et Comparée, 41, pp. 549-571 
504 |a Diotaiuti, L., Ribeiro De Paula, O., Falcao, P.L., Dias, J.C.P., Avaliação do programa de controle vectorial da doença de Chagas em Minas Gerais, Brasil, com referência especial ao Triatoma sordida (1995) Boletin de la Oficina Sanitaria Panamericana, 118, pp. 211-219 
504 |a Edgcomb, J.H., Johnson, C.M., Natural infection of Rattus rattus by Trypanosoma cruzi in Panama (1970) American Journal of Tropical Medicine and Hygiene, 19, pp. 767-769 
504 |a Forattini, O.P., Ferreira, O.A., De Souza, J.M.P., Rabello, E.X., Da Rocha E Silva, E.O., Rodrigues, F.W., Medida da infestação domiciliar por Triatoma sordida (1973) Revista de Saúde Pública, São Paulo, 7, pp. 241-250 
504 |a Forattini, O.P., Barata, J.M.S., Ferreira Santos, J.L., Silveira, A.C., Hábitos alimentares, infecção natural e distribuição de triatomíneos domiciliados na região central do Brasil (1982) Revista de Saúde Pública, São Paulo, 16, pp. 171-204 
504 |a Garcia Zapata, M.T.A., Marsden, P.D., Control of the transmission of chagas' disease in Mambaí, Goias, Brazil (1980-1988) (1992) American Journal of Tropical Medicine and Hygiene, 46, pp. 440-443 
504 |a Lent, H., Wygodzinsky, P., Revision of the Triatominae (Hemiptera, Reduviidae), and their significance as vectors of Chagas' disease (1979) Bulletin of the American Museum of Natural History, 163, pp. 127-520 
504 |a Noireau, F., Brenière, F., Cardozo, L., Bosseno, M.F., Vargbas, E., Peredo, C., Medinacelli, M., Current spread of Triatoma infestans at the expense of Triatoma sordida in Bolivia (1996) Memórias do Instituto Oswaldo Cruz, 91, pp. 271-272 
504 |a Perlowagora-Szumlewicz, A., De Carvalho Moreira, C.J., In vivo differentiation of Trypanosoma cruzi - 1. Experimental evidence of the influence of vector species on metacyclogenesis (1994) Memórias do Instituto Oswaldo Cruz, 89, pp. 603-618 
504 |a Rojas De Arias, A., De Guillen, I., Inchausti, A., Samudio, M., Schmeda-Hirschmann, G., Prevalence of Chagas' disease in Ayoreo communities of the Paraguayan Chaco (1993) Tropical Medicine and Parasitology, 44, pp. 285-288 
504 |a Schofield, C.J., (1994) Triatominae: Biology and Control, , Bognor Regis, UK: Eurocommunica Publications 
504 |a Schweigmann, N.J., Pietrokovsky, S., Bottazi, V., Conti, O., Wisnivesky-Colli, C., Interaction between Didelphis albiventris and Triatoma infestans in relation to Trypanosoma cruzi transmission (1995) Memórias do Instituto Oswaldo Cruz, 90, pp. 679-682 
504 |a Wisnivesky-Colli, C., Gürtler, R.E., Solarz, N.D., Salomon, D., Ruiz, A., Feeding patterns of Triatoma infestans (Hemiptera, Reduviidae) in relation to transmission of American trypanosomiasis in Argentina (1982) Journal of Medical Entomology, 19, pp. 645-654 
504 |a (1991) Control of Chagas Disease, (811). , Geneva: World Health Organization, Technical Report Series 
504 |a Zeledón, R., Effects of triatomine behavior on trypanosome transmission (1976) New Approaches in American Trypanosomiasis Research, pp. 326-329. , Washington, DC: Pan American Health Organization, Scientific Publication no. 318 
520 3 |a The role of Triatoma sordida in the domestic transmission of Trypanosoma cruzi was assessed in 7 rural localities in Velasco Province, Department of Santa Cruz, Bolivia. Tri. sordida, the only triatomine species identified in these localities, was found inside 58.0% of houses but not in large numbers (3.1 bugs per infested house on average). A total of 220 faecal samples from domiciliary bugs was examined microscopically and by the polymerase chain reaction for the presence of trypanosomes: 21.4% were infected. Analysis of blood meals of domiciliary Tri. sordida showed that humans were the commonest host (70.4%), followed by chickens and dogs. Four of 418 persons tested were seropositive for Tryp. cruzi. Only 2 of a second group of 62 persons living in dwellings infested by Tri. sordida were seropositive. Tryp. cruzi infection was demonstrated in dogs and domestic rats. Three other species of small mammals were found to be infected with trypanosomes. In our study area, domestic Tri. sordida are mainly incriminated in the transmission of Tryp. cruzi to synanthropic animals, whereas transmission to humans is very rare. The presence in houses of small populations of Tri. sordida infected with Tryp. cruzi is therefore currently insufficient for this insect to constitute a major epidemiological risk factor.  |l eng 
536 |a Detalles de la financiación: 940209 
536 |a Detalles de la financiación: Acknowledgements We thank M. Medinacelli for logistic support and M. Zegarraf or technicala ssistancein the laboratory.M . Saldias, J. M. Rojas and J. Ortiz from the museum of Natural History Noel Kempff, Santa Cruz, gave invaluable assistance in the field work and identification of rodents. Our special thanks go to J. Johnson and C. J. Schofield for reviewing the manuscript. This study received financial support from the United Nations Development Programme/World Bank/WHO Special Programme for Research and Training in Tropical Disease (grant no. 940209). 
593 |a ORSTOM, CP 9214, La Paz, Bolivia 
593 |a UMR CNRS/ORSTOM, B.P. 5045, 34032 Montpellier Cedex, France 
593 |a Univ. Auton. Gabriel Rene Moreno, CP 2489, Santa Cruz, Bolivia 
593 |a CENETROP, CP 2974, Santa Cruz, Bolivia 
593 |a Inst. Boliviano de Biol. de Altura, CP 641, La Paz, Bolivia 
593 |a U. Ecologia Reservorios y V., Depto. de Ciencias Biolögicas, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina 
651 4 |a AMERICAN TRYPANOSOMIASIS 
651 4 |a BOLIVIA 
651 4 |a BOLIVIA 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a TRANSMISSION 
690 1 0 |a TRIATOMA SORDIDA 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a TRYPANOSOMIASIS 
690 1 0 |a ADOLESCENT 
690 1 0 |a ADULT 
690 1 0 |a ANIMAL EXPERIMENT 
690 1 0 |a ANIMAL MODEL 
690 1 0 |a ARTICLE 
690 1 0 |a CHICKEN 
690 1 0 |a CHILD 
690 1 0 |a DISEASE TRANSMISSION 
690 1 0 |a DOG 
690 1 0 |a HOUSING 
690 1 0 |a HUMAN 
690 1 0 |a MAJOR CLINICAL STUDY 
690 1 0 |a MICROSCOPY 
690 1 0 |a NONHUMAN 
690 1 0 |a POLYMERASE CHAIN REACTION 
690 1 0 |a PROBABILITY 
690 1 0 |a RISK FACTOR 
690 1 0 |a RURAL AREA 
690 1 0 |a TRIATOMA 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a TRYPANOSOMIASIS 
690 1 0 |a ANIMALIA 
690 1 0 |a CANIS FAMILIARIS 
690 1 0 |a GALLUS GALLUS 
690 1 0 |a INSECTA 
690 1 0 |a MAMMALIA 
690 1 0 |a PROTOZOA 
690 1 0 |a TRIATOMA 
690 1 0 |a TRIATOMA SORDIDA 
690 1 0 |a TRYPANOSOMA 
690 1 0 |a TRYPANOSOMA CRUZI 
700 1 |a Brenière, F. 
700 1 |a Ordoñez, J. 
700 1 |a Cardozo, L. 
700 1 |a Morochi, W. 
700 1 |a Gutierrez, T. 
700 1 |a Bosseno, M.F. 
700 1 |a Garcia, S. 
700 1 |a Vargas, F. 
700 1 |a Yaksic, N. 
700 1 |a Dujardin, J.P. 
700 1 |a Peredo, C. 
700 1 |a Wisnivesky-Colli, C. 
773 0 |d Oxford University Press, 1997  |g v. 91  |h pp. 653-656  |k n. 6  |p Trans. R. Soc. Trop. Med. Hyg.  |x 00359203  |t Transactions of the Royal Society of Tropical Medicine and Hygiene 
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