Assessment of schistosomiasis in the semi-arid Northeast region of Brazil: the São Francisco River large-scale water transposition project

INTRODUCTION Risk of schistosomiasis expansion to semi-arid northeastern Brazil under the influence of the Integration Project of the São Francisco River (IPSFR) was assessed. Stool examinations of schoolchildren, epidemiological investigation, and survey of the local host snail Biomphalaria stramin...

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Bibliographic Details
Published in:	Revista da Sociedade Brasileira de Medicina Tropical Vol. 49; no. 2; pp. 252 - 257
Main Authors:	Favre, Tereza Cristina, Fernandez, Monica Ammon, Beck, Lilian Christina Nóbrega Holsbach, Guimarães, Ricardo José de Paula Souza, Pieri, Otávio Sarmento, Thiengo, Silvana Aparecida Carvalho
Format:	Journal Article
Language:	English
Published:	Brazil Sociedade Brasileira de Medicina Tropical 01-04-2016 Sociedade Brasileira de Medicina Tropical - SBMT Sociedade Brasileira de Medicina Tropical (SBMT)
Subjects:	Adolescent Animals Biomphalaria - parasitology Biomphalaria straminea Brazil - epidemiology Child Children & youth Disease transmission Epidemiological survey Epidemiology Humans Integration Project of the São Francisco River Parasite Egg Count Parasitic diseases Rivers Schistosoma mansoni - isolation & purification Schistosomiasis Schistosomiasis mansoni - diagnosis Schistosomiasis mansoni - epidemiology TROPICAL MEDICINE Brazil Sao Francisco River Epidemiological survey Biomphalaria straminea Integration Project of the São Francisco River
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Summary:	INTRODUCTION Risk of schistosomiasis expansion to semi-arid northeastern Brazil under the influence of the Integration Project of the São Francisco River (IPSFR) was assessed. Stool examinations of schoolchildren, epidemiological investigation, and survey of the local host snail Biomphalaria straminea were performed in five IPSFR municipalities. RESULTS Six of 4,770 examined schoolchildren were egg-positive for Schistosoma mansoni. Biomphalaria straminea was widespread, but not naturally infected with S. mansoni. Snails experimentally exposed to two laboratory S. mansoni strains yielded infection indices of 1-4.5%. There is evidence of active schistosomiasis transmission in the area; thus, intensive surveillance actions are required.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0037-8682 1678-9849 1678-9849 0037-8682
DOI:	10.1590/0037-8682-0243-2015