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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/20953


Title: Schistosomiasis Mansoni in Bananal (State of São Paulo, Brazil). III. Seroepidemiological Studies in the Palha District
Authors: Zacharias, Fabiana
Esther de Carvalho, Maria
Gargioni, Cybele
Teles, Horacio M. Santana
Ferreira, Cláudio Santos
de Lima, Valquíria R.
Keywords: schistosomiasis mansoni - seroepidemiology - low transmission area - 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: The Palha district, municipality of Bananal, State of São Paulo, Brazil, had 10.3% cases of Schistosoma mansoni diagnosed from 1994 to 2000 by coproscopy: about three times the municipality average. The immunofluorescent antibody test was used to assess gut-associated IgM antibody titers of samples from 452 inhabitants. It disclosed 129 (28.5%) positive cases. Subjects were classified according to age, sex, birthplace, and period of residence. Titers varied from 8 to 4,096 (geometric mean: 170.2). Seropositives were aged from 6 to 69 years (average: 24.5), 75% of them aged 34 or less, predominantly males (78 or 60.5%). Of all subjects, 65.7% were born and had been living in Bananal since; 24.2% came from neighboring municipalities and are residing in Bananal from two months to 89 years (average: 22.7 years). Further Kato-Katz coproscopy from 97 seropositives (geometric mean titer, 619) revealed S. mansoni eggs in 11 subjects (11.3%). Serology was deemed useful in screening subjects to be further investigated by coproscopy, considering that blood collection had better acceptance than supplying fecal samples. Higher than average serological titers may indicate new cases in endemic areas. Longitudinal studies associated with epidemiological investigation, including titer evolution are advised, as isolated data are difficult to interpret.
URI: http://hdl.handle.net/1807/20953
Other Identifiers: http://www.bioline.org.br/abstract?id=oc02180
Rights: Copyright 2002 - Instituto Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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