Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile
Autor(a) principal: | |
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Data de Publicação: | 1989 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | spa |
Título da fonte: | Revista de Saúde Pública |
Texto Completo: | https://www.revistas.usp.br/rsp/article/view/23551 |
Resumo: | In the Valdivia (Chile) river basin 1,295 inhabitants of 6 riverside districts were examined between March and October 1987 and showed a 1.2% of prevalence by Diphyllobothrium in the districts of Riñihue and Las Huellas. Prevalence of 5.3% and 9.8% respectively were registered in dogs of the districts of Riñihue and Malihue. No cat or pig infection was observed in the different districts. The parasites recovered after the treatment were identified as Diphyllobothrium latum. Human infection by D. latum in the districts affected results from the consumption of smoked or insufficiently cooked fish. The investigation of 1,450 fish (4 exotic species and 11 autochthonous ones), caught in the Valdivia river basin in 1986 and 1987, showed the existence of plerocercoids of D. latum and/or Diphyllobothrium dendriticum in Salmo gairdneri and Salmo trutta among exotic fish and in some autochthonous species. Prevalence and mean intensity in the infection of fish as well as the degree of aggregation in the infrapopulations varied in the different districts. Some species of fish would act as intermediary hosts and others as paratenic hosts in the life cycles of Diphyllobothrium spp. in the Valdivia river basin. An improvement in the conditions of basic sanitation, in sanitary education and in the treatment of infected persons is proposed as a means for the control of diphyllobothriasis in the districts affected. |
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Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile Epidemiología de la difilobotriasis en la cuenca del río Valdivia, Chile Epidemiologia de difílobotriase na bacia do rio Valdivia, Chile Difllobotríase^i2^sincidênDiphyllobothrium latum^i2^sisolameSalmão^i2^sparasitoloDifilobotriasis^i1^sincidenDiphyllobothrium latum^i1^saislamieSalmónidos^i1^sparasitoloDiphyllobothriasis^i3^soccurreDiphyllobothrium latum^i3^sisolatSalmon^i3^sparasitol In the Valdivia (Chile) river basin 1,295 inhabitants of 6 riverside districts were examined between March and October 1987 and showed a 1.2% of prevalence by Diphyllobothrium in the districts of Riñihue and Las Huellas. Prevalence of 5.3% and 9.8% respectively were registered in dogs of the districts of Riñihue and Malihue. No cat or pig infection was observed in the different districts. The parasites recovered after the treatment were identified as Diphyllobothrium latum. Human infection by D. latum in the districts affected results from the consumption of smoked or insufficiently cooked fish. The investigation of 1,450 fish (4 exotic species and 11 autochthonous ones), caught in the Valdivia river basin in 1986 and 1987, showed the existence of plerocercoids of D. latum and/or Diphyllobothrium dendriticum in Salmo gairdneri and Salmo trutta among exotic fish and in some autochthonous species. Prevalence and mean intensity in the infection of fish as well as the degree of aggregation in the infrapopulations varied in the different districts. Some species of fish would act as intermediary hosts and others as paratenic hosts in the life cycles of Diphyllobothrium spp. in the Valdivia river basin. An improvement in the conditions of basic sanitation, in sanitary education and in the treatment of infected persons is proposed as a means for the control of diphyllobothriasis in the districts affected. Entre los meses de marzo y octubre de 1987 fueron examinados 1295 personas de seis distritos ribereños de la cuenca del río Valdivia, determinándose un 1,2% de prevalencia de infección por Diphyllobothrium en los distritos de Riñihue y Las Huellas. Además, se comprobó un 5,3% y un 9,8% de prevalencia en perros de los distritos de Riñihue y Malihue, respectivamente, pero no se observó infección en gatos y cerdos. Los parásitos recuperados después del tratamiento fueron identificados como Diphyllobothrium latum. La infección humana por D. latum en los distritos afectados se favorece por el consumo de peces ahumados o sometidos a cocción insuficiente. La investigación de 1450 peces (4 especies introducidas y 11 autóctonas) capturados entre 1986-1987 en la cuenca del río Valdivia, demostró la existencia de plerocercoides de D. latum y/o Diphyllobothrium dendriticum en Salmo gairdneri y Salmo trutta, entre los peces introducidos, y en algunas especies autóctonas. La prevalencia e intensidad media en las infecciones de los peces así como el grado de agregación de las infrapoblaciones varía en los distintos sectores. Algunas especies de peces actuarían como huésped intermediario y otras como huéspedes paraténicos de Diphyllobothrium spp. en la cuenca del río Valdivia. Como medidas de control para la difilobotriasis en los distritos afectados se propone un mejoramiento de las condiciones de saneamiento básico, educación sanitaria y tratamiento de las personas infectadas. Foram examinadas 1.295 pessoas de seis localidades situadas às margens da bacia do rio Valdivia (Chile), encontrando-se uma prevalência de infecção por Diphyllobothrium igual a 1,2% em Riñihue e Las Huellas. Em cães a prevalência foi de 5,3% e e 9,8% em Riñihue e Malihue, respectivamente, não tendo sido observada infecção em gatos nem porcos. Os parasitas obtidos após tratamento foram identificados como Diphyllobothrium latum. A infecção humana por Diphyllobothrium latum nas áreas afetadas foi produzida pela ingestão de peixes defumados ou cozidos insuficientemente. A pesquisa realizada em l .450 peixes pertencentes a 4 espécies introduzidas e 11 autóctones capturadas na bacia do rio Valdivia mostrou a existência de plerocercoides de Diphyllobothrium latum e/ou D. dendriticum nas espécies introduzidas Salmo gairdneri e S. trutta além de outras autoctones. A prevalência ou intensidade média das infecções nos peixes bem como o grau de agregação das subpopulações variaram nos diferentes locais estudados. Na bacia do río Valdivia, alguns peixes atuaram como hospedeiros intermediários e outros como paratênicos das espécies de Diphyllobothrium encontradas. Como medidas de controle nos pontos de difilobotriase nas áreas estudadas sugere-se a melhoria das condições de saneamento básico, educação sanitária e tratamento das pessoas infectadas. Universidade de São Paulo. Faculdade de Saúde Pública1989-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rsp/article/view/2355110.1590/S0034-89101989000100007Revista de Saúde Pública; Vol. 23 No. 1 (1989); 45-57 Revista de Saúde Pública; Vol. 23 Núm. 1 (1989); 45-57 Revista de Saúde Pública; v. 23 n. 1 (1989); 45-57 1518-87870034-8910reponame:Revista de Saúde Públicainstname:Universidade de São Paulo (USP)instacron:USPspahttps://www.revistas.usp.br/rsp/article/view/23551/25588Copyright (c) 2017 Revista de Saúde Públicainfo:eu-repo/semantics/openAccessTorres, PatricioFranjola, RenéPérez, JoséAuad, SadiUherek, FernandoMiranda, Juan C.Flores, LuisaRiquelme, JavierSalazar, SamuelHermosilla, ClaudiaRojo, Rubén2012-05-28T17:01:01Zoai:revistas.usp.br:article/23551Revistahttps://www.revistas.usp.br/rsp/indexONGhttps://www.revistas.usp.br/rsp/oairevsp@org.usp.br||revsp1@usp.br1518-87870034-8910opendoar:2012-05-28T17:01:01Revista de Saúde Pública - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile Epidemiología de la difilobotriasis en la cuenca del río Valdivia, Chile Epidemiologia de difílobotriase na bacia do rio Valdivia, Chile |
title |
Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile |
spellingShingle |
Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile Torres, Patricio Difllobotríase^i2^sincidên Diphyllobothrium latum^i2^sisolame Salmão^i2^sparasitolo Difilobotriasis^i1^sinciden Diphyllobothrium latum^i1^saislamie Salmónidos^i1^sparasitolo Diphyllobothriasis^i3^soccurre Diphyllobothrium latum^i3^sisolat Salmon^i3^sparasitol |
title_short |
Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile |
title_full |
Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile |
title_fullStr |
Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile |
title_full_unstemmed |
Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile |
title_sort |
Epidemiology of diphyllobothriasis in the Valdivia River basin, Chile |
author |
Torres, Patricio |
author_facet |
Torres, Patricio Franjola, René Pérez, José Auad, Sadi Uherek, Fernando Miranda, Juan C. Flores, Luisa Riquelme, Javier Salazar, Samuel Hermosilla, Claudia Rojo, Rubén |
author_role |
author |
author2 |
Franjola, René Pérez, José Auad, Sadi Uherek, Fernando Miranda, Juan C. Flores, Luisa Riquelme, Javier Salazar, Samuel Hermosilla, Claudia Rojo, Rubén |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Torres, Patricio Franjola, René Pérez, José Auad, Sadi Uherek, Fernando Miranda, Juan C. Flores, Luisa Riquelme, Javier Salazar, Samuel Hermosilla, Claudia Rojo, Rubén |
dc.subject.por.fl_str_mv |
Difllobotríase^i2^sincidên Diphyllobothrium latum^i2^sisolame Salmão^i2^sparasitolo Difilobotriasis^i1^sinciden Diphyllobothrium latum^i1^saislamie Salmónidos^i1^sparasitolo Diphyllobothriasis^i3^soccurre Diphyllobothrium latum^i3^sisolat Salmon^i3^sparasitol |
topic |
Difllobotríase^i2^sincidên Diphyllobothrium latum^i2^sisolame Salmão^i2^sparasitolo Difilobotriasis^i1^sinciden Diphyllobothrium latum^i1^saislamie Salmónidos^i1^sparasitolo Diphyllobothriasis^i3^soccurre Diphyllobothrium latum^i3^sisolat Salmon^i3^sparasitol |
description |
In the Valdivia (Chile) river basin 1,295 inhabitants of 6 riverside districts were examined between March and October 1987 and showed a 1.2% of prevalence by Diphyllobothrium in the districts of Riñihue and Las Huellas. Prevalence of 5.3% and 9.8% respectively were registered in dogs of the districts of Riñihue and Malihue. No cat or pig infection was observed in the different districts. The parasites recovered after the treatment were identified as Diphyllobothrium latum. Human infection by D. latum in the districts affected results from the consumption of smoked or insufficiently cooked fish. The investigation of 1,450 fish (4 exotic species and 11 autochthonous ones), caught in the Valdivia river basin in 1986 and 1987, showed the existence of plerocercoids of D. latum and/or Diphyllobothrium dendriticum in Salmo gairdneri and Salmo trutta among exotic fish and in some autochthonous species. Prevalence and mean intensity in the infection of fish as well as the degree of aggregation in the infrapopulations varied in the different districts. Some species of fish would act as intermediary hosts and others as paratenic hosts in the life cycles of Diphyllobothrium spp. in the Valdivia river basin. An improvement in the conditions of basic sanitation, in sanitary education and in the treatment of infected persons is proposed as a means for the control of diphyllobothriasis in the districts affected. |
publishDate |
1989 |
dc.date.none.fl_str_mv |
1989-02-01 |
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/23551 10.1590/S0034-89101989000100007 |
url |
https://www.revistas.usp.br/rsp/article/view/23551 |
identifier_str_mv |
10.1590/S0034-89101989000100007 |
dc.language.iso.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/rsp/article/view/23551/25588 |
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. 23 No. 1 (1989); 45-57 Revista de Saúde Pública; Vol. 23 Núm. 1 (1989); 45-57 Revista de Saúde Pública; v. 23 n. 1 (1989); 45-57 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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1800221774106853376 |