Evolutive pattern of schistosomiasis and life-span of S. mansoni in patients living in non-endemic area in Brazil

Out of 2484 patients harboring S. mansoni seen in Rio de Janeiro, 1197 had been living permanently out of endemic area frorn one to 30 years, without any possibility of reinfection; 90.1% of these 1197 patients were first seen with, hepato-intestinal schistosomiasis and only 9.9% with hepatosplenic...

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Bibliographic Details
Published in:Revista da Sociedade Brasileira de Medicina Tropical
Main Authors: J. Rodrigues Coura, Bodo Wanke, Norton de Figueiredo, C.A. Argento
Format: Article in Journal/Newspaper
Language:English
Published: Sociedade Brasileira de Medicina Tropical (SBMT) 1974
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Online Access:https://doi.org/10.1590/S0037-86821974000400001
https://doaj.org/article/a7a3c6d1f227458295f68a669961b46c
Description
Summary:Out of 2484 patients harboring S. mansoni seen in Rio de Janeiro, 1197 had been living permanently out of endemic area frorn one to 30 years, without any possibility of reinfection; 90.1% of these 1197 patients were first seen with, hepato-intestinal schistosomiasis and only 9.9% with hepatosplenic form. 55% of thern still had S. mansoni active infection 6 years or more after they had left the endemic area and 26.5% remained infected for more than 10 years. The patients with intestinal or hepato-intestinal schistosomiasis did not develop the most severe form whether they had been treated or not, and the hepatosplenic patients had a long time to deteriorate.