Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil

Detalhes bibliográficos
Autor(a) principal: Freitas, Simone Patrícia Carneiro
Data de Publicação: 2005
Outros Autores: Lorosa, Elias Seixas, Rodrigues, Daniele Cristine Silva, Freitas, Assilon Lindoval Carneiro, Gonçalves, Teresa Cristina Monte
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista de Saúde Pública
Texto Completo: https://www.revistas.usp.br/rsp/article/view/31829
Resumo: OBJECTIVE: T. pseudomaculata, a peridomicilar species, has low rates of T. cruzi infection. The occurrence of this triatomine in the domicile and its feeding patterns was investigated to identify potential T. cruzi reservoirs. METHODS: Nine-hundred and twenty-one specimens of T. pseudomaculata were captured from January 2001 to July 2002 in 13 southern municipalities of the state of Ceará, Brazil. The intestinal contents of the triatomines was removed, spread in a filter paper and tested for the following antisera: bird, cat, cockroach, dog, human, lizard, opossum, ox/goat, pig, and rodent. The presence of T. cruzi was investigated by wet mount microscopic exam and culture (NNN+LIT) of intestinal contents. RESULTS: Of the total studied, 184 (90.6%) were positive for the tested antisera: bird (62.5%)>; rodent (33.7%)>; dog (20.1%)>; opossum (9.8%)>; lizard and ox/goat (5%)>; cat (2.7%)>; pig and cockroach (2.2%)>; human (1.6%). Blood meals ranged from none (non-reactive) to four as follows: non-reactive (9.4%), one (57.1%), two (26%), three (7%), and four (0.5%). Only three specimens (1.6%) had T. cruzi infection. CONCLUSIONS: The low incidence of human blood meal shows that T. pseudomaculata is well-adjusted to the peridomicile. However, the epidemiological vigilance in this region is key due to this species' proximity to domiciles.
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spelling Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil Fontes alimentares de Triatoma pseudomaculata no Estado do Ceará, Brasil Food habitsTrypanosoma cruziEcologyvectorsDisease vectorsInsect vectorsTriatoma pseudomaculataHábitos alimentaresTrypanosoma cruziEcologia de vetoresVetores de doençasInsetos vetoresTriatoma pseudomaculata OBJECTIVE: T. pseudomaculata, a peridomicilar species, has low rates of T. cruzi infection. The occurrence of this triatomine in the domicile and its feeding patterns was investigated to identify potential T. cruzi reservoirs. METHODS: Nine-hundred and twenty-one specimens of T. pseudomaculata were captured from January 2001 to July 2002 in 13 southern municipalities of the state of Ceará, Brazil. The intestinal contents of the triatomines was removed, spread in a filter paper and tested for the following antisera: bird, cat, cockroach, dog, human, lizard, opossum, ox/goat, pig, and rodent. The presence of T. cruzi was investigated by wet mount microscopic exam and culture (NNN+LIT) of intestinal contents. RESULTS: Of the total studied, 184 (90.6%) were positive for the tested antisera: bird (62.5%)>; rodent (33.7%)>; dog (20.1%)>; opossum (9.8%)>; lizard and ox/goat (5%)>; cat (2.7%)>; pig and cockroach (2.2%)>; human (1.6%). Blood meals ranged from none (non-reactive) to four as follows: non-reactive (9.4%), one (57.1%), two (26%), three (7%), and four (0.5%). Only three specimens (1.6%) had T. cruzi infection. CONCLUSIONS: The low incidence of human blood meal shows that T. pseudomaculata is well-adjusted to the peridomicile. However, the epidemiological vigilance in this region is key due to this species' proximity to domiciles. OBJETIVO: Triatoma pseudomaculata, espécie peridomiciliar, é encontrada apresentando baixa taxa de infecção por Trypanosoma cruzi. Com o objetivo de identificar os possíveis reservatórios de T. cruzi, investigou-se a ocorrência desse triatomíneo no domicílio, bem como suas fontes alimentares. MÉTODOS: De janeiro de 2001 a julho de 2002 foram capturados 921 espécimes de T. pseudomaculata em 13 municípios do sul do Estado do Ceará. O conteúdo intestinal dos triatomíneos foi retirado, espalhado em disco de papel de filtro e analisado por precipitina para os seguintes anti-soros: ave, roedor, cão, gambá, lagarto, boi/cabra, gato, porco, barata e humano. A investigação da presença de T. cruzi foi feita observando-se parte do conteúdo intestinal dos insetos a fresco, entre lâmina e lamínula, e pela sua semeadura em meio de cultura. RESULTADOS: Do total examinado, 184 (90,6%) foram positivos para os anti-soros testados: ave (62,5%)>; roedor (33,7%)>; cão (20,1%)>; gambá (9,8%)>; lagarto (5%)>; boi-cabra (5%)>; gato (2,7%)>; porco (2,2%)>; barata (2,2%)>; humano (1,6%). As alimentações variaram de zero (não reagiram) a quatro da seguinte forma: não reagiram (9,4%), uma (57,1%), duas (26%), três (7%) ou quatro (0,5%). Das fontes alimentares identificadas apenas três espécimes (1,6%) foram positivos para T. cruzi. CONCLUSÕES: A baixa incidência de sangue humano mostra que T. pseudomaculata está bem adaptado ao peridomicílio. Porém, a vigilância epidemiológica na região sul do Estado do Ceará se faz necessária tendo em vista a proximidade da espécie ao domicílio. Universidade de São Paulo. Faculdade de Saúde Pública2005-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rsp/article/view/3182910.1590/S0034-89102005000100004Revista de Saúde Pública; Vol. 39 No. 1 (2005); 27-32 Revista de Saúde Pública; Vol. 39 Núm. 1 (2005); 27-32 Revista de Saúde Pública; v. 39 n. 1 (2005); 27-32 1518-87870034-8910reponame:Revista de Saúde Públicainstname:Universidade de São Paulo (USP)instacron:USPporhttps://www.revistas.usp.br/rsp/article/view/31829/33769Copyright (c) 2017 Revista de Saúde Públicainfo:eu-repo/semantics/openAccessFreitas, Simone Patrícia CarneiroLorosa, Elias SeixasRodrigues, Daniele Cristine SilvaFreitas, Assilon Lindoval CarneiroGonçalves, Teresa Cristina Monte2012-07-08T22:31:38Zoai:revistas.usp.br:article/31829Revistahttps://www.revistas.usp.br/rsp/indexONGhttps://www.revistas.usp.br/rsp/oairevsp@org.usp.br||revsp1@usp.br1518-87870034-8910opendoar:2012-07-08T22:31:38Revista de Saúde Pública - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil
Fontes alimentares de Triatoma pseudomaculata no Estado do Ceará, Brasil
title Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil
spellingShingle Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil
Freitas, Simone Patrícia Carneiro
Food habits
Trypanosoma cruzi
Ecology
vectors
Disease vectors
Insect vectors
Triatoma pseudomaculata
Hábitos alimentares
Trypanosoma cruzi
Ecologia de vetores
Vetores de doenças
Insetos vetores
Triatoma pseudomaculata
title_short Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil
title_full Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil
title_fullStr Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil
title_full_unstemmed Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil
title_sort Feeding patterns of Triatoma pseudomaculata in the state of Ceará, Brazil
author Freitas, Simone Patrícia Carneiro
author_facet Freitas, Simone Patrícia Carneiro
Lorosa, Elias Seixas
Rodrigues, Daniele Cristine Silva
Freitas, Assilon Lindoval Carneiro
Gonçalves, Teresa Cristina Monte
author_role author
author2 Lorosa, Elias Seixas
Rodrigues, Daniele Cristine Silva
Freitas, Assilon Lindoval Carneiro
Gonçalves, Teresa Cristina Monte
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Freitas, Simone Patrícia Carneiro
Lorosa, Elias Seixas
Rodrigues, Daniele Cristine Silva
Freitas, Assilon Lindoval Carneiro
Gonçalves, Teresa Cristina Monte
dc.subject.por.fl_str_mv Food habits
Trypanosoma cruzi
Ecology
vectors
Disease vectors
Insect vectors
Triatoma pseudomaculata
Hábitos alimentares
Trypanosoma cruzi
Ecologia de vetores
Vetores de doenças
Insetos vetores
Triatoma pseudomaculata
topic Food habits
Trypanosoma cruzi
Ecology
vectors
Disease vectors
Insect vectors
Triatoma pseudomaculata
Hábitos alimentares
Trypanosoma cruzi
Ecologia de vetores
Vetores de doenças
Insetos vetores
Triatoma pseudomaculata
description OBJECTIVE: T. pseudomaculata, a peridomicilar species, has low rates of T. cruzi infection. The occurrence of this triatomine in the domicile and its feeding patterns was investigated to identify potential T. cruzi reservoirs. METHODS: Nine-hundred and twenty-one specimens of T. pseudomaculata were captured from January 2001 to July 2002 in 13 southern municipalities of the state of Ceará, Brazil. The intestinal contents of the triatomines was removed, spread in a filter paper and tested for the following antisera: bird, cat, cockroach, dog, human, lizard, opossum, ox/goat, pig, and rodent. The presence of T. cruzi was investigated by wet mount microscopic exam and culture (NNN+LIT) of intestinal contents. RESULTS: Of the total studied, 184 (90.6%) were positive for the tested antisera: bird (62.5%)>; rodent (33.7%)>; dog (20.1%)>; opossum (9.8%)>; lizard and ox/goat (5%)>; cat (2.7%)>; pig and cockroach (2.2%)>; human (1.6%). Blood meals ranged from none (non-reactive) to four as follows: non-reactive (9.4%), one (57.1%), two (26%), three (7%), and four (0.5%). Only three specimens (1.6%) had T. cruzi infection. CONCLUSIONS: The low incidence of human blood meal shows that T. pseudomaculata is well-adjusted to the peridomicile. However, the epidemiological vigilance in this region is key due to this species' proximity to domiciles.
publishDate 2005
dc.date.none.fl_str_mv 2005-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/rsp/article/view/31829
10.1590/S0034-89102005000100004
url https://www.revistas.usp.br/rsp/article/view/31829
identifier_str_mv 10.1590/S0034-89102005000100004
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/rsp/article/view/31829/33769
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. 39 No. 1 (2005); 27-32
Revista de Saúde Pública; Vol. 39 Núm. 1 (2005); 27-32
Revista de Saúde Pública; v. 39 n. 1 (2005); 27-32
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
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