Triatoma sordida stål 1859 (hemiptera, reduviidae : triatominae) in palms of northeastern Argentina

Several palms species provide an important habitat for triatomines and associate vertebrates in tropical America. The objective of this work is to identify the triatomine species living in the palms of rural areas in the Province of Corrientes, and to estimate the potential epidemiological risk they...

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Autores principales: Bar, María Esther, Wisnivesky Colli, Cristina
Formato: Artículo
Lenguaje:Inglés
Publicado: Ministério da Saúde. Instituto Oswaldo Cruz 2022
Materias:
Triatoma sordida
Palms
Wild triatomines
Butia yatay
Argentina
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/48859
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-48859
record_format dspace
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 Triatoma sordida
Palms
Wild triatomines
Butia yatay
Argentina
spellingShingle Triatoma sordida
Palms
Wild triatomines
Butia yatay
Argentina
Bar, María Esther
Wisnivesky Colli, Cristina
Triatoma sordida stål 1859 (hemiptera, reduviidae : triatominae) in palms of northeastern Argentina
topic_facet Triatoma sordida
Palms
Wild triatomines
Butia yatay
Argentina
description Several palms species provide an important habitat for triatomines and associate vertebrates in tropical America. The objective of this work is to identify the triatomine species living in the palms of rural areas in the Province of Corrientes, and to estimate the potential epidemiological risk they represent for the residents of nearby houses. The survey was carried out in a palm community in Colonia Laurel, Department San Roque, Province of Corrientes, Argentina. Samplings were performed in October, November and December 1998; January, February and March 1999; May and June 1999. Thirty palms: 27 (90%) Butia yatay (Mart.) Becc. and 3 Acrocomia aculeata (Jacq.) Lodd ex Mart. were dissected. Triatoma sordida Stål 1859 was found in 96.2% of B. yatay and in all the A. aculeata palms. A total of 272 live T. sordida was collected; 36 of them (13.2%) were found in bird nests in the frond and the remainder in other locations of the tree. The mean number of triatomines per palm was 9.6 (range 1-60, mode 2). T. sordida was collected during all the sampling months and all stages were present at all seasons. The highest population density was reached in spring and the lowest in autumn. Trypanosoma cruzi was detected in 38.5% in feces of 174 examined insects and identified as such, both by microscopical examination and PCR. This is the first finding of T. sordida populations in B. yatay, an endemic palm of South America distributed in southern Brazil, Uruguay and northeastern Argentina. The high infection prevalence found in this work suggests that T. sordida plays an essential role in the maintenance of the wild T. cruzi transmission cycle in northeastern Argentina.
format Artículo
author Bar, María Esther
Wisnivesky Colli, Cristina
author_facet Bar, María Esther
Wisnivesky Colli, Cristina
author_sort Bar, María Esther
title Triatoma sordida stål 1859 (hemiptera, reduviidae : triatominae) in palms of northeastern Argentina
title_short Triatoma sordida stål 1859 (hemiptera, reduviidae : triatominae) in palms of northeastern Argentina
title_full Triatoma sordida stål 1859 (hemiptera, reduviidae : triatominae) in palms of northeastern Argentina
title_fullStr Triatoma sordida stål 1859 (hemiptera, reduviidae : triatominae) in palms of northeastern Argentina
title_full_unstemmed Triatoma sordida stål 1859 (hemiptera, reduviidae : triatominae) in palms of northeastern Argentina
title_sort triatoma sordida stål 1859 (hemiptera, reduviidae : triatominae) in palms of northeastern argentina
publisher Ministério da Saúde. Instituto Oswaldo Cruz
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/48859
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AT wisniveskycollicristina triatomasordidastal1859hemipterareduviidaetriatominaeinpalmsofnortheasternargentina
bdutipo_str Repositorios
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