Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay)

Susceptibility and compatibility experiments were carried out with 700 Biomphalaria tenagophila from the Paraná River basin exposed to infection with Schistosoma mansoni. Individual infection was performed with 10 miracidia of SJ2 strain from the Paraiba valley (Brazil) originally infective to B. te...

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Autores principales: Borda, Carlos Edgardo, Rea, María Josefa Felisa
Formato: Artículo
Lenguaje:Inglés
Publicado: Ministério da Saúde. Instituto Oswaldo Cruz 2022
Materias:
Biomphalaria tenagophila
Potencial schistosome vector
Paraná River basin
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/49524
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RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-49524
record_format dspace
spelling I48-R184-123456789-495242024-12-16T11:36:21Z Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay) Borda, Carlos Edgardo Rea, María Josefa Felisa Biomphalaria tenagophila Potencial schistosome vector Paraná River basin Susceptibility and compatibility experiments were carried out with 700 Biomphalaria tenagophila from the Paraná River basin exposed to infection with Schistosoma mansoni. Individual infection was performed with 10 miracidia of SJ2 strain from the Paraiba valley (Brazil) originally infective to B. tenagophila. These snails were laboratory-breed progeny of B. tenagophila collected from six localities of Argentina and one from Paraguay. From Argentina: Rincón de Vences (7%) and Posadas (11%) became infected with S. mansoni and the calculation of Frandsen’s index (TCP/100) shows that they were Class II poorly compatible. Those snails from Goya (22%), Maloyas (5%), and Berón de Astrada (3%) were Class III compatible to the S. mansoni. None of the 100 snails exposed from Caá-Catí became infected (Class 0 incompatible). Tested samples from Paraguay (Encarnación) were infected (20%) and compatible (Class III). It was also studied the persistence of the infection in 244 snails of the first generation (F1) of those that were susceptible from three places. It was demonstrated an increment of the susceptibility in the F1 from Maloyas (χ2 = 27.22; p = 0.0001) and Posadas (χ2 = 4.24; p = 0.04). The results point out the possibility that schistosomiasis might be able to spread into the Paraná River basin where B. tenagophila exists. 2022-07-13T12:18:36Z 2022-07-13T12:18:36Z 2007-03 Artículo Borda, Carlos Edgardo y Rea, María Josefa Felisa, 2007. Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay). Memórias do Instituto Oswaldo Cruz. Río de Janeiro: Ministério da Saúde. Instituto Oswaldo Cruz, vol. 102, no. 2, p. 191-195. ISSN-e 1678-8060. 0074-0276 http://repositorio.unne.edu.ar/handle/123456789/49524 eng 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, 2007, vol. 102, no. 2, p. 191-195.
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 Biomphalaria tenagophila
Potencial schistosome vector
Paraná River basin
spellingShingle Biomphalaria tenagophila
Potencial schistosome vector
Paraná River basin
Borda, Carlos Edgardo
Rea, María Josefa Felisa
Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay)
topic_facet Biomphalaria tenagophila
Potencial schistosome vector
Paraná River basin
description Susceptibility and compatibility experiments were carried out with 700 Biomphalaria tenagophila from the Paraná River basin exposed to infection with Schistosoma mansoni. Individual infection was performed with 10 miracidia of SJ2 strain from the Paraiba valley (Brazil) originally infective to B. tenagophila. These snails were laboratory-breed progeny of B. tenagophila collected from six localities of Argentina and one from Paraguay. From Argentina: Rincón de Vences (7%) and Posadas (11%) became infected with S. mansoni and the calculation of Frandsen’s index (TCP/100) shows that they were Class II poorly compatible. Those snails from Goya (22%), Maloyas (5%), and Berón de Astrada (3%) were Class III compatible to the S. mansoni. None of the 100 snails exposed from Caá-Catí became infected (Class 0 incompatible). Tested samples from Paraguay (Encarnación) were infected (20%) and compatible (Class III). It was also studied the persistence of the infection in 244 snails of the first generation (F1) of those that were susceptible from three places. It was demonstrated an increment of the susceptibility in the F1 from Maloyas (χ2 = 27.22; p = 0.0001) and Posadas (χ2 = 4.24; p = 0.04). The results point out the possibility that schistosomiasis might be able to spread into the Paraná River basin where B. tenagophila exists.
format Artículo
author Borda, Carlos Edgardo
Rea, María Josefa Felisa
author_facet Borda, Carlos Edgardo
Rea, María Josefa Felisa
author_sort Borda, Carlos Edgardo
title Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay)
title_short Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay)
title_full Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay)
title_fullStr Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay)
title_full_unstemmed Biomphalaria tenagophila potencial vector of schistosoma mansoni in the Paraná River basin (Argentina and Paraguay)
title_sort biomphalaria tenagophila potencial vector of schistosoma mansoni in the paraná river basin (argentina and paraguay)
publisher Ministério da Saúde. Instituto Oswaldo Cruz
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/49524
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AT reamariajosefafelisa biomphalariatenagophilapotencialvectorofschistosomamansoniintheparanariverbasinargentinaandparaguay
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