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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/22425

Title: Schistosomiasis Mansoni in Bananal (State of São Paulo, Brazil). I. efficiency of diagnostic and treatment procedures
Authors: Teles, Horacio Manuel Santana
Esther de Carvalho, Maria
Ferreira, Cláudio Santos
Zacharias, Fabiana
Rosa de Lima, Valquíria
Fadel, Maria Lucia Condino
Keywords: schistosomiasis - control - diagnosis - treatment - resistance - São Paulo - Brazil
Issue Date: 31-Dec-2002
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 97 Num s1
Abstract: Bananal is an important focus of Schistosoma mansoni in the State of São Paulo. Accordingly, programmed active search for human cases, annual coproscopic surveys and treatment of infected cases were started in 1998, aiming at producing a sharp prevalence rate drop by the year 2000. S. mansoni eggs were searched for in two Kato-Katz slides per patient. Cases were followed up according to the routine of the local Family Health Program. In 1998, 130 samples out of 3,860 showed S. mansoni eggs; in 1999, 105 out of 3,550, and in 2000, 64 out of 3,528. Prevalence rates were 3.4%, 2.9%, and 1.8%, and average egg-counts 59, 64, and 79 eggs per gram of feces respectively. Prevalence rates decreased steadily after treatment, but persistently positive cases showed no significant decrease in parasite burdens. Egg count variation depended on sex and age bracket. Persistent residual cases admittedly preclude the eradication of this infection by only searching for and treating carriers. In addition, resistance to therapy and low sensitivity of fecal examinations, can not be ignored. Moderate to heavy worm burdens, frequently associated with hepatomegaly elsewhere, produced no serious cases in Bananal.
URI: http://hdl.handle.net/1807/22425
Other Identifiers: http://www.bioline.org.br/abstract?id=oc02210
Rights: Copyright 2002 - Instituto Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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