Infecção natural de Lutzomyia longipalpis por Leishmania sp. em Teresina, Piauí, Brasil

Detalhes bibliográficos
Autor(a) principal: Silva, Jackellyne Geórgia Dutra e
Data de Publicação: 2007
Outros Autores: Werneck, Guilherme L., Cruz, Maria do Socorro Pires e, Costa, Carlos Henrique Nery, Mendonça, Ivete Lopes de
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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spelling 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
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dc.relation.none.fl_str_mv https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3335/6743
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
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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
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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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