Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/71514
Type: Artigo de periódico
Title: SCHISTOSOMIASIS-MANSONI IN AN AREA OF LOW TRANSMISSION .1. IMPACT OF CONTROL MEASURES
Author: MARCAL, O
PATUCCI, RMD
DIAS, LCD
HOTTA, LK
ETZEL, A
Abstract: This work was undertaken in the municipality of Pedro de Toledo (Sao Paulo State, Brazil) in 1987, to clarify aspects related to the transmission levels of Schistosoma mansoni in a human population where the snail host is Biomphalaria tenagophila. Since 1980 a control programme has been undertaken in this municipality. Urban and rural populations (4,719 subjects) were submitted to faecal examinations (Kato-Katz method). The overall prevalence rate was 4.8% being higher in males (6.2%) and also in the rural zone (5.8%). The geometric mean of S. mansoni eggs was 35.1 eggs per gramme of faeces (epg). Approximately 80.0% of the carriers presented less than 100 epg and only 20 individuals (9.0%) eliminated more than half of total eggs. The highest index of potential contamination (IPC) was in the age group of 5 to 20 years (57.6%). Two thirds of the investigated patients (207) were autochthonous of Pedro de Toledo. The geographical distribution of the carriers showed a clear aggregation of the autochthonous cases and a close association between human contact sites and breeding places of B. tenagophila. This study shows that schistosomiasis subjects were not randomly aggregated, the youngsters should be the main target in the prophylaxis, and the efficacy of the control programme.
Subject: SCHISTOSOMIASIS TRANSMISSION
SCHISTOSOMA-MANSONI
BIOMPHALARIA-TENAGOPHILA
Country: Brasil
Editor: Inst Medicina Tropical
Rights: aberto
Identifier DOI: 10.1590/S0036-46651991000200001
Date Issue: 1991
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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