Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina

An entomological and serological survey was performed in three localities of the Department of Concepción, Province of Corrientes, Argentina in 1998 and 1999, to identify triatomines species involved in domestic and wild transmission of Chagas disease. Triatomines were collected by man/hour capture...

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Autores principales: Bar, María Esther, Damborsky, Miryam Pieri, Oscherov, Elena Beatriz, Milano, Alicia María Francisca, Ávalos, Gilberto, Wisnivesky Colli, Cristina
Formato: Artículo
Lenguaje:Inglés
Publicado: Ministério da Saúde. Instituto Oswaldo Cruz 2022
Materias:
Argentina
Infestation
Infection
Triatoma infestans
Triatoma sordida
Seroprevalence
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/48879
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-48879
record_format dspace
spelling I48-R184-123456789-488792025-03-06T10:59:35Z Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina Bar, María Esther Damborsky, Miryam Pieri Oscherov, Elena Beatriz Milano, Alicia María Francisca Ávalos, Gilberto Wisnivesky Colli, Cristina Argentina Infestation Infection Triatoma infestans Triatoma sordida Seroprevalence An entomological and serological survey was performed in three localities of the Department of Concepción, Province of Corrientes, Argentina in 1998 and 1999, to identify triatomines species involved in domestic and wild transmission of Chagas disease. Triatomines were collected by man/hour capture in 32 houses randomly selected and 44 nearby outdoor ecotopes. Trypanosoma cruzi infection in triatomines was assessed by direct microscopic observation (400x) of feces and polymerase chain reaction. Serological techniques used for people were Indirect Hemagglutination Test and Indirect Fluorescent Test. Triatomines were collected in 28.1% of the houses and 31.8% of the wild biotopes. Triatoma infestans (Klug 1834) was exclusively found indoors and T. cruzi infected 60% of them. Triatomasordida (Stål 1859) was mainly found in extradomestic ecotopes where trypanosome infection rate reached 12.7%.Serological study of 98 local people showed that 29.6% were seroreactive; most of their houses were closed to wildbiotopes colonized by T. sordida. Results indicate that there is an active T. infestans mediated transmission of Chagas disease in this zone thatyields important human prevalence and that the populations of T. sordida in wild biotopes not only sustain the wildT. cruzi cycle but also represent an actual risk for people living in the area. 2022-07-08T19:59:28Z 2022-07-08T19:59:28Z 2002-01 Artículo Bar, María Esther, et al., 2002. Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina. Memórias do Instituto Oswaldo Cruz. Río de Janeiro: Ministério da Saúde. Instituto Oswaldo Cruz, vol. 97, no. 1, p. 43-46. ISSN-e 1678-8060. 0074-0276 http://repositorio.unne.edu.ar/handle/123456789/48879 eng https://doi.org/10.1590/S0074-02762002000100005 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf Ministério da Saúde. Instituto Oswaldo Cruz Memórias do Instituto Oswaldo Cruz, 2002, vol. 97, no. 1, p. 43-46.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Argentina
Infestation
Infection
Triatoma infestans
Triatoma sordida
Seroprevalence
spellingShingle Argentina
Infestation
Infection
Triatoma infestans
Triatoma sordida
Seroprevalence
Bar, María Esther
Damborsky, Miryam Pieri
Oscherov, Elena Beatriz
Milano, Alicia María Francisca
Ávalos, Gilberto
Wisnivesky Colli, Cristina
Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina
topic_facet Argentina
Infestation
Infection
Triatoma infestans
Triatoma sordida
Seroprevalence
description An entomological and serological survey was performed in three localities of the Department of Concepción, Province of Corrientes, Argentina in 1998 and 1999, to identify triatomines species involved in domestic and wild transmission of Chagas disease. Triatomines were collected by man/hour capture in 32 houses randomly selected and 44 nearby outdoor ecotopes. Trypanosoma cruzi infection in triatomines was assessed by direct microscopic observation (400x) of feces and polymerase chain reaction. Serological techniques used for people were Indirect Hemagglutination Test and Indirect Fluorescent Test. Triatomines were collected in 28.1% of the houses and 31.8% of the wild biotopes. Triatoma infestans (Klug 1834) was exclusively found indoors and T. cruzi infected 60% of them. Triatomasordida (Stål 1859) was mainly found in extradomestic ecotopes where trypanosome infection rate reached 12.7%.Serological study of 98 local people showed that 29.6% were seroreactive; most of their houses were closed to wildbiotopes colonized by T. sordida. Results indicate that there is an active T. infestans mediated transmission of Chagas disease in this zone thatyields important human prevalence and that the populations of T. sordida in wild biotopes not only sustain the wildT. cruzi cycle but also represent an actual risk for people living in the area.
format Artículo
author Bar, María Esther
Damborsky, Miryam Pieri
Oscherov, Elena Beatriz
Milano, Alicia María Francisca
Ávalos, Gilberto
Wisnivesky Colli, Cristina
author_facet Bar, María Esther
Damborsky, Miryam Pieri
Oscherov, Elena Beatriz
Milano, Alicia María Francisca
Ávalos, Gilberto
Wisnivesky Colli, Cristina
author_sort Bar, María Esther
title Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina
title_short Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina
title_full Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina
title_fullStr Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina
title_full_unstemmed Triatomines involved in domestic and wild trypanosoma cruzi transmission in Concepción, Corrientes, Argentina
title_sort triatomines involved in domestic and wild trypanosoma cruzi transmission in concepción, corrientes, argentina
publisher Ministério da Saúde. Instituto Oswaldo Cruz
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/48879
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