Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission

Detalhes bibliográficos
Autor(a) principal: Lainson, Ralph
Data de Publicação: 1987
Outros Autores: Ryan, Lee, Shaw, Jeffrey Jon
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Digital do Instituto Evandro Chagas (Patuá)
Texto Completo: https://patua.iec.gov.br/handle/iec/2743
Resumo: Infective stages of Leishmania (Leishmania) amazonensis, capable of producing amastigote infections in hamster skin, were shown to be present in the experimentally infected sandfly vector Lutzomyia flaviscutellata 15, 25, 40, 49, 70, 96 and 120 hours after the flies had received their infective blood-meal. Similarly, infective stages of Leishmania (L.) chagasi were demonstrated in the experimentally infected vector Lu. longipalpis examined 38, 50, 63, 87, 110, 135, 171 and 221 hours following the infective blood-meal, by the intraperitoneal inoculation of the flagellates into hamsters. The question of whether or not transmission by the bite of the sandfly is dependent on the presence of [quot ]metacyclic[quot ] promastigotes in the mouthparts of the vector is discussed.
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spelling Lainson, RalphRyan, LeeShaw, Jeffrey Jon2017-09-13T15:32:27Z2017-09-13T15:32:27Z1987LAINSON, Ralph; RYAN, Lee; SHAW, Jeffrey Jon. Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission. Memórias do Instituto Oswaldo Cruz, v. 82, n. 3, p. 421-424, July. - Sept. 1987.0074-0276https://patua.iec.gov.br/handle/iec/2743Infective stages of Leishmania (Leishmania) amazonensis, capable of producing amastigote infections in hamster skin, were shown to be present in the experimentally infected sandfly vector Lutzomyia flaviscutellata 15, 25, 40, 49, 70, 96 and 120 hours after the flies had received their infective blood-meal. Similarly, infective stages of Leishmania (L.) chagasi were demonstrated in the experimentally infected vector Lu. longipalpis examined 38, 50, 63, 87, 110, 135, 171 and 221 hours following the infective blood-meal, by the intraperitoneal inoculation of the flagellates into hamsters. The question of whether or not transmission by the bite of the sandfly is dependent on the presence of [quot ]metacyclic[quot ] promastigotes in the mouthparts of the vector is discussed.Foi demonstrado através de infecção experimental, que estágios infectivos de Leishmania (L.) amazonensis, capazes de produzir infecção na pele do hamster, encontram-se presentes no vetor flebotomíneo Lutzomyia flaviscutellata 15, 25, 40, 49, 70, 96 e 120 horas após o inseto ter recebido sua refeição sangüínea infectiva. Da mesma maneira, foi comprovada a presença de estágios infectivos de L. (L.) chagasi em exemplares do vetor Lu. longipalpis, examinados 38, 50, 63, 87, 110, 135, 171 e 221 horas após o repasto sangüíneo infectivo - através da inoculação em hamster por via intraperitoneal dos flagelados obtidos desses fle botomíneos. A questão sobre a transmissão do gênero Leishmania pelo flebotomíneo ser ou não dependente da presença de promastigotos "metacíclios" na proboscis do vetor, é discutida.Ministério da Saúde. Fundação Serviços de Saúde Pública. Instituto Evandro Chagas. Belém, PA, Brasil.Yale University. School of Medicine. New Heaven, Yale, USA.Ministério da Saúde. Fundação Serviços de Saúde Pública. Instituto Evandro Chagas. Belém, PA, Brasil.engInstituto Oswaldo CruzInfective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmissioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleLeishmaniose / transmissãoPsychodidae / parasitologiaVetores de Doençasinfo:eu-repo/semantics/openAccessreponame:Repositório Digital do Instituto Evandro Chagas (Patuá)instname:Instituto Evandro Chagas (IEC)instacron:IECLICENSElicense.txtlicense.txttext/plain; charset=utf-871https://patua.iec.gov.br/bitstreams/5a4456ac-d7e8-4ced-b201-16f92663aed2/download52f1732ea66fbd1123abe39f5373b797MD52ORIGINALInfective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission.pdfInfective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission.pdfapplication/pdf185647https://patua.iec.gov.br/bitstreams/d10911c6-3f96-4161-80bf-cc9dc6c8fb00/downloadcef087a352370db303964fbe8187a476MD53TEXTInfective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission.pdf.txtInfective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission.pdf.txtExtracted texttext/plain8https://patua.iec.gov.br/bitstreams/7c286aa5-8d63-4c64-a3bf-524f7e470829/download8d1b69dd9bdc9df4a8073c7a8193c7afMD56THUMBNAILInfective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission.pdf.jpgInfective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission.pdf.jpgGenerated Thumbnailimage/jpeg7313https://patua.iec.gov.br/bitstreams/50fa54cb-ef45-439a-b3ce-2c8f15bebdfa/download2996ee2339fb7280811d9351832d781dMD57iec/27432022-10-20 21:08:53.501oai:patua.iec.gov.br:iec/2743https://patua.iec.gov.brRepositório InstitucionalPUBhttps://patua.iec.gov.br/oai/requestclariceneta@iec.gov.br || Biblioteca@iec.gov.bropendoar:2022-10-20T21:08:53Repositório Digital do Instituto Evandro Chagas (Patuá) - Instituto Evandro Chagas (IEC)falseVG9kb3Mgb3MgZG9jdW1lbnRvcyBkZXNzYSBjb2xlw6fDo28gc2VndWVtIGEgTGljZW7Dp2EgQ3JlYXRpdmUgY29tbW9ucy4=
dc.title.pt_BR.fl_str_mv Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission
title Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission
spellingShingle Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission
Lainson, Ralph
Leishmaniose / transmissão
Psychodidae / parasitologia
Vetores de Doenças
title_short Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission
title_full Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission
title_fullStr Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission
title_full_unstemmed Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission
title_sort Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission
author Lainson, Ralph
author_facet Lainson, Ralph
Ryan, Lee
Shaw, Jeffrey Jon
author_role author
author2 Ryan, Lee
Shaw, Jeffrey Jon
author2_role author
author
dc.contributor.author.fl_str_mv Lainson, Ralph
Ryan, Lee
Shaw, Jeffrey Jon
dc.subject.decsPrimary.pt_BR.fl_str_mv Leishmaniose / transmissão
Psychodidae / parasitologia
Vetores de Doenças
topic Leishmaniose / transmissão
Psychodidae / parasitologia
Vetores de Doenças
description Infective stages of Leishmania (Leishmania) amazonensis, capable of producing amastigote infections in hamster skin, were shown to be present in the experimentally infected sandfly vector Lutzomyia flaviscutellata 15, 25, 40, 49, 70, 96 and 120 hours after the flies had received their infective blood-meal. Similarly, infective stages of Leishmania (L.) chagasi were demonstrated in the experimentally infected vector Lu. longipalpis examined 38, 50, 63, 87, 110, 135, 171 and 221 hours following the infective blood-meal, by the intraperitoneal inoculation of the flagellates into hamsters. The question of whether or not transmission by the bite of the sandfly is dependent on the presence of [quot ]metacyclic[quot ] promastigotes in the mouthparts of the vector is discussed.
publishDate 1987
dc.date.issued.fl_str_mv 1987
dc.date.accessioned.fl_str_mv 2017-09-13T15:32:27Z
dc.date.available.fl_str_mv 2017-09-13T15:32:27Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.citation.fl_str_mv LAINSON, Ralph; RYAN, Lee; SHAW, Jeffrey Jon. Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission. Memórias do Instituto Oswaldo Cruz, v. 82, n. 3, p. 421-424, July. - Sept. 1987.
dc.identifier.uri.fl_str_mv https://patua.iec.gov.br/handle/iec/2743
dc.identifier.issn.-.fl_str_mv 0074-0276
identifier_str_mv LAINSON, Ralph; RYAN, Lee; SHAW, Jeffrey Jon. Infective stages of Leishmania in the sandfly vector and some observations on the mechanism of transmission. Memórias do Instituto Oswaldo Cruz, v. 82, n. 3, p. 421-424, July. - Sept. 1987.
0074-0276
url https://patua.iec.gov.br/handle/iec/2743
dc.language.iso.fl_str_mv eng
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