Susceptibility of Biomphalaria straminea from Peixe Angical dam, Tocantins, Brazil to infection with three strains of Schistosoma mansoni

dc.creatorFernandez, Monica Ammom
dc.creatorThiengo, Silvana Carvalho
dc.date2018-04-26T15:37:30Z
dc.date2018-04-26T15:37:30Z
dc.date2010
dc.date.accessioned2023-09-26T23:25:03Z
dc.date.available2023-09-26T23:25:03Z
dc.identifierFERNANDEZ, Monica Ammom; THIENGO, Silvana Carvalho. Susceptibility of Biomphalaria straminea from Peixe Angical dam, Tocantins, Brazil to infection with three strains of Schistosoma mansoni. Mem Inst Oswaldo Cruz, v.105, n.4: p.488-491, July 2010.
dc.identifier0074-0276
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/26140
dc.identifier1678-8060
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8890348
dc.descriptionEnvironmental changes from water resource developmental projects affect the epidemiology of water-associated diseases, as well as malaria and schistosomiasis. Aiming to investigate the occurrence and distribution of freshwater snails of medical and veterinary importance in the area of influence of the Peixe Angical hydroelectric dam, a survey has been conducted over four years (2004-2008). The study has revealed the occurrence of populations of Biomphalaria straminea (Dunker) in all municipalities surrounding the lake. Studies on parasite-mollusc compatibility were undertaken using 35 populations of B. straminea, descendants of specimens obtained from that area and three strains of Schistosoma mansoni (Sambon) (BH, CM and CMO). The main results are as follows: (i) among the 1,314 specimens used, eight had been infected (infection index of 0.6%) with only the BH strain, (ii) for B. straminea populations, the mortality index was 6.8% and, depending on the strain used, the indexes were 4.6%, 8.49% and 19% with BH, CM and CMO strains, respectively, (iii) the infection indexes varied according to the B. straminea populations, ranging from 0-12.5% and (iv) the duration of the precercarial period varied from 25-49 days. These results, in addition to environmental and social changes that took place in the Peixe Angical dam region, indicate the possibility of B. straminea emerging as a schistosomiasis vector in this area.
dc.formatapplication/pdf
dc.languageeng
dc.publisherFundação Oswaldo Cruz. Instituto Oswaldo Cruz
dc.rightsopen access
dc.subjectSchistosoma mansoni
dc.subjectbarragem
dc.subjectBiomphalaria straminea
dc.subjectsuscetibilidade
dc.subjectTocantins
dc.subjectBrasil
dc.subjectBiomphalaria straminea
dc.subjectsusceptibility
dc.subjectSchistosoma mansoni
dc.subjectdam
dc.subjectTocantins
dc.subjectBrazil
dc.titleSusceptibility of Biomphalaria straminea from Peixe Angical dam, Tocantins, Brazil to infection with three strains of Schistosoma mansoni
dc.typeArticle


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