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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/21967


Title: Lymphatic Filariasis in Brazilian Urban Area (Maceió, Alagoas)
Authors: Fontes, Gilberto
Rocha, Eliana Maria Mauricio
Brito, Ana C.
Antunes, Carlos Mauricio de Figueiredo
Keywords: Wuchereria bancrofti - lymphatic filariasis - epidemiology
Issue Date: 31-Dec-1998
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 93 Num 6
Abstract: A cross-sectional survey conducted among evening students was used to determine the prevalence of Wuchereria bancrofti infection in Maceió, capital of the State of Alagoas, northeast Brazil. A single thick-blood smear was used, being collected between 10 p.m. and 12 a.m. From a total of 29,551 students enrolled at evening elementary schools in the 33 city sectors, 16,569 (56.4%) were random selected for inclusion in the study. From those, 10,857 (65.5%) were interviewed and examined and 73 (0.7%) were found to have microfilaraemia. Autochthonous W. bancrofti carriers live in 10 of the 33 city sectors, suggesting a focal distribution. Moreover, 84% of infections were diagnosed among 29% of all students examined, inhabiting three contiguous sectors at the city central area, presenting infection rates up to 5.3%. Students living in city sectors with prevalence of microfilariae carriers greater than 1% were found to have a higher risk for infection when compared to students from the rest of the town [Relative Odds (RO) 12.8, 95% CI 6.7 - 25.1]. Eleven positive individuals from non endemic areas were living in Maceió for more than 10 years; time of residence in the area was a major risk factor for infection among students not born in the region (p<0.01). Regarding sex, male students presented a higher proportion of positive (RO 1.7, 95% CI 1.1 - 2.9).
URI: http://hdl.handle.net/1807/21967
Other Identifiers: http://www.bioline.org.br/abstract?id=oc98196
Rights: Copyright 1998 Fundacao Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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