Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Cadernos de Saúde Pública |
Texto Completo: | https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335 |
Resumo: | In Brazil, control of the vector Lutzomyia longipalpis is one of the main strategies used to limit the expansion of American visceral leishmaniasis. However, studies on the ecology of this sand fly are rare, especially regarding its natural infection with species of Leishmania. A study of the natural infection of Lu. longipalpis by Leishmania sp. was carried out in the Bela Vista neighborhood in the city of Teresina, Piauí State, Brazil, an important area of American visceral leishmaniasis transmission. From February 2004 to January 2005, sand flies were captured with CDC light traps. Approximately 10 female sand flies in each capture were dissected and examined for the presence of evolutionary forms of Leishmania sp. Two sand fly species were identified: 1,832 were Lu. longipalpis and six Lu. whitmani. Twenty female sand flies (1.1%), all Lu. longipalpis, were infected with procyclic and nectomonad forms of Leishmania sp., found mostly in the hindgut. Higher proportions of infected sand flies were found four months after the rainy season, suggesting that environmental factors may predict not only vector abundance (as already known) but also their level of infection. |
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Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, BrasilLeishmaniosePsychodidaeControle de VetoresInfecçãoIn Brazil, control of the vector Lutzomyia longipalpis is one of the main strategies used to limit the expansion of American visceral leishmaniasis. However, studies on the ecology of this sand fly are rare, especially regarding its natural infection with species of Leishmania. A study of the natural infection of Lu. longipalpis by Leishmania sp. was carried out in the Bela Vista neighborhood in the city of Teresina, Piauí State, Brazil, an important area of American visceral leishmaniasis transmission. From February 2004 to January 2005, sand flies were captured with CDC light traps. Approximately 10 female sand flies in each capture were dissected and examined for the presence of evolutionary forms of Leishmania sp. Two sand fly species were identified: 1,832 were Lu. longipalpis and six Lu. whitmani. Twenty female sand flies (1.1%), all Lu. longipalpis, were infected with procyclic and nectomonad forms of Leishmania sp., found mostly in the hindgut. Higher proportions of infected sand flies were found four months after the rainy season, suggesting that environmental factors may predict not only vector abundance (as already known) but also their level of infection.No Brasil, o controle do vetor Lutzomyia longipalpis é uma das principais estratégias utilizadas para limitar a expansão da leishmaniose visceral americana. Entretanto, poucos são os estudos sobre a infecção natural destes flebotomíneos por espécies de Leishmania. Um estudo sobre a infecção natural de Lu. longipalpis por Leishmania sp. foi realizado no bairro Bela Vista, Teresina, Piauí, um dos principais focos urbanos da leishmaniose visceral americana no Brasil. Entre fevereiro de 2004 e janeiro de 2005 realizaram-se 180 capturas usando-se armadilhas luminosas do tipo CDC. Foram dissecadas e examinadas, em média, dez fêmeas por captura para detecção de formas evolutivas de Leishmania sp., identificando-se 1.832 exemplares de Lu. longipalpis e seis de Lu. whitmani. Vinte (1,1%) espécimes, todas de Lu. longipalpis, estavam infectadas com as formas procíclica e nectomonada de Leishmania sp., localizadas, principalmente, na porção posterior do trato digestivo. O maior percentual de insetos infectados foi encontrado quatro meses após o período de maior precipitação pluviométrica, sugerindo que variáveis climáticas podem contribuir para a predição não apenas da abundância destes dípteros, mas também do seu grau de infecção natural.Reports in Public HealthCadernos de Saúde Pública2007-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlapplication/pdfhttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335Reports in Public Health; Vol. 23 No. 7 (2007): JulyCadernos de Saúde Pública; v. 23 n. 7 (2007): Julho1678-44640102-311Xreponame:Cadernos de Saúde Públicainstname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZporhttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335/6743https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335/6744Silva, Jackellyne Geórgia Dutra eWerneck, Guilherme L.Cruz, Maria do Socorro Pires eCosta, Carlos Henrique NeryMendonça, Ivete Lopes deinfo:eu-repo/semantics/openAccess2024-03-06T15:27:33Zoai:ojs.teste-cadernos.ensp.fiocruz.br:article/3335Revistahttps://cadernos.ensp.fiocruz.br/ojs/index.php/csphttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/oaicadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br1678-44640102-311Xopendoar:2024-03-06T13:03:52.193250Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ)true |
dc.title.none.fl_str_mv |
Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil |
title |
Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil |
spellingShingle |
Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil Silva, Jackellyne Geórgia Dutra e Leishmaniose Psychodidae Controle de Vetores Infecção |
title_short |
Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil |
title_full |
Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil |
title_fullStr |
Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil |
title_full_unstemmed |
Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil |
title_sort |
Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil |
author |
Silva, Jackellyne Geórgia Dutra e |
author_facet |
Silva, Jackellyne Geórgia Dutra e Werneck, Guilherme L. Cruz, Maria do Socorro Pires e Costa, Carlos Henrique Nery Mendonça, Ivete Lopes de |
author_role |
author |
author2 |
Werneck, Guilherme L. Cruz, Maria do Socorro Pires e Costa, Carlos Henrique Nery Mendonça, Ivete Lopes de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silva, Jackellyne Geórgia Dutra e Werneck, Guilherme L. Cruz, Maria do Socorro Pires e Costa, Carlos Henrique Nery Mendonça, Ivete Lopes de |
dc.subject.por.fl_str_mv |
Leishmaniose Psychodidae Controle de Vetores Infecção |
topic |
Leishmaniose Psychodidae Controle de Vetores Infecção |
description |
In Brazil, control of the vector Lutzomyia longipalpis is one of the main strategies used to limit the expansion of American visceral leishmaniasis. However, studies on the ecology of this sand fly are rare, especially regarding its natural infection with species of Leishmania. A study of the natural infection of Lu. longipalpis by Leishmania sp. was carried out in the Bela Vista neighborhood in the city of Teresina, Piauí State, Brazil, an important area of American visceral leishmaniasis transmission. From February 2004 to January 2005, sand flies were captured with CDC light traps. Approximately 10 female sand flies in each capture were dissected and examined for the presence of evolutionary forms of Leishmania sp. Two sand fly species were identified: 1,832 were Lu. longipalpis and six Lu. whitmani. Twenty female sand flies (1.1%), all Lu. longipalpis, were infected with procyclic and nectomonad forms of Leishmania sp., found mostly in the hindgut. Higher proportions of infected sand flies were found four months after the rainy season, suggesting that environmental factors may predict not only vector abundance (as already known) but also their level of infection. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-07-01 |
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://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335 |
url |
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335/6743 https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335/6744 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html application/pdf |
dc.publisher.none.fl_str_mv |
Reports in Public Health Cadernos de Saúde Pública |
publisher.none.fl_str_mv |
Reports in Public Health Cadernos de Saúde Pública |
dc.source.none.fl_str_mv |
Reports in Public Health; Vol. 23 No. 7 (2007): July Cadernos de Saúde Pública; v. 23 n. 7 (2007): Julho 1678-4464 0102-311X reponame:Cadernos de Saúde Pública instname:Fundação Oswaldo Cruz (FIOCRUZ) instacron:FIOCRUZ |
instname_str |
Fundação Oswaldo Cruz (FIOCRUZ) |
instacron_str |
FIOCRUZ |
institution |
FIOCRUZ |
reponame_str |
Cadernos de Saúde Pública |
collection |
Cadernos de Saúde Pública |
repository.name.fl_str_mv |
Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ) |
repository.mail.fl_str_mv |
cadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br |
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1798943360615972864 |