Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi
Autor(a) principal: | |
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Data de Publicação: | 1988 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista de Saúde Pública |
Texto Completo: | https://www.revistas.usp.br/rsp/article/view/23522 |
Resumo: | The reaction of nine vector species of Chagas' disease to infection by seven different Trypanosoma cruzi strains; Berenice, Y, FL, CL, S. Felipe, Colombiana and Gávea, are examined and compared. On the basis of the insects' ability to establish and maintain the infection, vector species could be divided into two distinct groups which differ in their reaction to an acute infection by T. cruzi. While the proportion of positive bugs was found to be low in Triatoma infestans and Triatoma dimidiata it was high, ranging from 96.9% to 100% in the group of wild (Rhodnius neglectus, Triatoma rubrovaria)and essentially sylvatic vectors in process of adaptation to human dwellings, maintained under control following successful insecticidal elimination of Triatoma infestans (Panstrongylus megistus, Triatoma sordida and Triatoma pseudomaculata). An intermediate position is held by Triatoma brasiliensis and Rhodnius prolixus. This latter has been found to interchange between domestic and sylvatic environments. The most important finding is the strikingly good reaction between each species of the sylvatic bugs and practically all T. cruzi strains herein studied, thus indicating that the factors responsible for the excellent reaction of P.megistus to infection by Y strain, as previously reported also come into operation in the reaction of the same vector species to acute infections by five of the remaining T.cruzi strains. Comparison or data reported by other investigators with those herein described form the basis of the discussion of Dipetalogaster maximus as regards its superiority as a xenodiagnostic agent. |
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Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi Estudos em busca de um inseto modelo experimental para xenodiagnóstico em hospedeiros com doença de Chagas: 3 - A interação entre a espécie vetora e a cepa do parasito na reação do vetor à infecção com Trypanosoma cruzi Tripanossomose Sul-Americana^i2^sdiagnóstInsetos vetores^i2^sparasitoloRelações hospedeiro-parasitaTriatoma^i2^sparasitoloPanstrongylus^i2^sparasitoloRhodnius^i2^sparasitoloTrypanosoma cruziTrypanosomiasisSouth American^i1^sdiagnoInsect vectors^i1^sparasitolHost-parasite^i1^srelatiTriatoma^i1^sparasitolPanstrongylus^i1^sparasitolRhodnius^i1^sparasitolTrypanosoma cruzi The reaction of nine vector species of Chagas' disease to infection by seven different Trypanosoma cruzi strains; Berenice, Y, FL, CL, S. Felipe, Colombiana and Gávea, are examined and compared. On the basis of the insects' ability to establish and maintain the infection, vector species could be divided into two distinct groups which differ in their reaction to an acute infection by T. cruzi. While the proportion of positive bugs was found to be low in Triatoma infestans and Triatoma dimidiata it was high, ranging from 96.9% to 100% in the group of wild (Rhodnius neglectus, Triatoma rubrovaria)and essentially sylvatic vectors in process of adaptation to human dwellings, maintained under control following successful insecticidal elimination of Triatoma infestans (Panstrongylus megistus, Triatoma sordida and Triatoma pseudomaculata). An intermediate position is held by Triatoma brasiliensis and Rhodnius prolixus. This latter has been found to interchange between domestic and sylvatic environments. The most important finding is the strikingly good reaction between each species of the sylvatic bugs and practically all T. cruzi strains herein studied, thus indicating that the factors responsible for the excellent reaction of P.megistus to infection by Y strain, as previously reported also come into operation in the reaction of the same vector species to acute infections by five of the remaining T.cruzi strains. Comparison or data reported by other investigators with those herein described form the basis of the discussion of Dipetalogaster maximus as regards its superiority as a xenodiagnostic agent. É examinada e comparada a reação de nove espécies vetoras da doença de Chagas à infecção, por sete diferentes cepas do T.cruzi (Berenice, Y, FL, CL, São Felipe, Colombiana e Gávea). Com base na habilidade em estabelecer e manter a infecção, as espécies vetoras podem ser divididas em dois grupos distintos, que diferem em suas reações à infecção aguda por T.cruzi. Enquanto a proporção de insetos positivos foi baixa em domiciliados (Triatoma infestans e Triatoma dimidiata), foi alta nos considerados completamente selvagens (Rhodnius neglectus e Triatoma rubrovaria), ao serem iniciadas suas colonizações no laboratório, no início da década de 70, e nos essencialmente silvestres (Panstrongylus megistus, Triatoma sordida e Triatoma pseudomaculata). Admite-se que devido à exploração agropecuária e graças às campanhas de controle, os dois últimos grupos encontram mais freqüentemente condições que lhes permitem maior convivência com o homem e animais domésticos. As proporções de positivos nas cinco últimas espécies acima citadas, cada qual infectada com uma das sete cepas do T.cruzi, quando somadas (34 "Overalls") variam de 90% a 100%, com exceção de 65,6% encontrada em P.megistus infectado com a cepa Gávea. A posição intermediária está sendo ocupada por Triatoma brasiliensis e Rhodniusprolixus, o último alternando entre biótipo natural e artificial. Achado relevante foi a uniformidade de reações dos vetores silvestres às infecções com, praticamente, todas as cepas do T.cruzi, sugerindo que o fator ou fatores responsáveis pela reação do P.megistus à infecção pela cepa Y também operam nas reações desta espécie com as restantes cepas, embora, várias destas tenham sido bioquimicamente diferentes entre si. A comparação dos dados aqui apresentados com os relatados por outros investigadores, forma a base da discussão sobre a superioridade de uso do D.maximus como agente no xenodiagnóstico. Universidade de São Paulo. Faculdade de Saúde Pública1988-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rsp/article/view/2352210.1590/S0034-89101988000500004Revista de Saúde Pública; Vol. 22 No. 5 (1988); 390-400 Revista de Saúde Pública; Vol. 22 Núm. 5 (1988); 390-400 Revista de Saúde Pública; v. 22 n. 5 (1988); 390-400 1518-87870034-8910reponame:Revista de Saúde Públicainstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/rsp/article/view/23522/25559Copyright (c) 2017 Revista de Saúde Públicainfo:eu-repo/semantics/openAccessPerlowagora-Szumlewicz, AlinaMuller, Carlos AlbertoMoreira, Carlos José de Carvalho2012-05-28T16:56:49Zoai:revistas.usp.br:article/23522Revistahttps://www.revistas.usp.br/rsp/indexONGhttps://www.revistas.usp.br/rsp/oairevsp@org.usp.br||revsp1@usp.br1518-87870034-8910opendoar:2012-05-28T16:56:49Revista de Saúde Pública - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi Estudos em busca de um inseto modelo experimental para xenodiagnóstico em hospedeiros com doença de Chagas: 3 - A interação entre a espécie vetora e a cepa do parasito na reação do vetor à infecção com Trypanosoma cruzi |
title |
Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi |
spellingShingle |
Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi Perlowagora-Szumlewicz, Alina Tripanossomose Sul-Americana^i2^sdiagnóst Insetos vetores^i2^sparasitolo Relações hospedeiro-parasita Triatoma^i2^sparasitolo Panstrongylus^i2^sparasitolo Rhodnius^i2^sparasitolo Trypanosoma cruzi Trypanosomiasis South American^i1^sdiagno Insect vectors^i1^sparasitol Host-parasite^i1^srelati Triatoma^i1^sparasitol Panstrongylus^i1^sparasitol Rhodnius^i1^sparasitol Trypanosoma cruzi |
title_short |
Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi |
title_full |
Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi |
title_fullStr |
Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi |
title_full_unstemmed |
Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi |
title_sort |
Studies in search of a suitable experimental insect model for xenodiagnosis of hosts with Chagas' disease: 3 - On the interaction of vector species and parasite strain in the reaction of bugs to infection by Trypanosoma cruzi |
author |
Perlowagora-Szumlewicz, Alina |
author_facet |
Perlowagora-Szumlewicz, Alina Muller, Carlos Alberto Moreira, Carlos José de Carvalho |
author_role |
author |
author2 |
Muller, Carlos Alberto Moreira, Carlos José de Carvalho |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Perlowagora-Szumlewicz, Alina Muller, Carlos Alberto Moreira, Carlos José de Carvalho |
dc.subject.por.fl_str_mv |
Tripanossomose Sul-Americana^i2^sdiagnóst Insetos vetores^i2^sparasitolo Relações hospedeiro-parasita Triatoma^i2^sparasitolo Panstrongylus^i2^sparasitolo Rhodnius^i2^sparasitolo Trypanosoma cruzi Trypanosomiasis South American^i1^sdiagno Insect vectors^i1^sparasitol Host-parasite^i1^srelati Triatoma^i1^sparasitol Panstrongylus^i1^sparasitol Rhodnius^i1^sparasitol Trypanosoma cruzi |
topic |
Tripanossomose Sul-Americana^i2^sdiagnóst Insetos vetores^i2^sparasitolo Relações hospedeiro-parasita Triatoma^i2^sparasitolo Panstrongylus^i2^sparasitolo Rhodnius^i2^sparasitolo Trypanosoma cruzi Trypanosomiasis South American^i1^sdiagno Insect vectors^i1^sparasitol Host-parasite^i1^srelati Triatoma^i1^sparasitol Panstrongylus^i1^sparasitol Rhodnius^i1^sparasitol Trypanosoma cruzi |
description |
The reaction of nine vector species of Chagas' disease to infection by seven different Trypanosoma cruzi strains; Berenice, Y, FL, CL, S. Felipe, Colombiana and Gávea, are examined and compared. On the basis of the insects' ability to establish and maintain the infection, vector species could be divided into two distinct groups which differ in their reaction to an acute infection by T. cruzi. While the proportion of positive bugs was found to be low in Triatoma infestans and Triatoma dimidiata it was high, ranging from 96.9% to 100% in the group of wild (Rhodnius neglectus, Triatoma rubrovaria)and essentially sylvatic vectors in process of adaptation to human dwellings, maintained under control following successful insecticidal elimination of Triatoma infestans (Panstrongylus megistus, Triatoma sordida and Triatoma pseudomaculata). An intermediate position is held by Triatoma brasiliensis and Rhodnius prolixus. This latter has been found to interchange between domestic and sylvatic environments. The most important finding is the strikingly good reaction between each species of the sylvatic bugs and practically all T. cruzi strains herein studied, thus indicating that the factors responsible for the excellent reaction of P.megistus to infection by Y strain, as previously reported also come into operation in the reaction of the same vector species to acute infections by five of the remaining T.cruzi strains. Comparison or data reported by other investigators with those herein described form the basis of the discussion of Dipetalogaster maximus as regards its superiority as a xenodiagnostic agent. |
publishDate |
1988 |
dc.date.none.fl_str_mv |
1988-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/rsp/article/view/23522 10.1590/S0034-89101988000500004 |
url |
https://www.revistas.usp.br/rsp/article/view/23522 |
identifier_str_mv |
10.1590/S0034-89101988000500004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/rsp/article/view/23522/25559 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Revista de Saúde Pública info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Revista de Saúde Pública |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Saúde Pública |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Saúde Pública |
dc.source.none.fl_str_mv |
Revista de Saúde Pública; Vol. 22 No. 5 (1988); 390-400 Revista de Saúde Pública; Vol. 22 Núm. 5 (1988); 390-400 Revista de Saúde Pública; v. 22 n. 5 (1988); 390-400 1518-8787 0034-8910 reponame:Revista de Saúde Pública instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Revista de Saúde Pública |
collection |
Revista de Saúde Pública |
repository.name.fl_str_mv |
Revista de Saúde Pública - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
revsp@org.usp.br||revsp1@usp.br |
_version_ |
1800221774057570304 |