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A 15-year follow-up study on schistosomiasis in a low-endemic area in Rio de Janeiro State, Brazil

Published online by Cambridge University Press:  23 September 2009

R.P. Igreja ,
M.F. Gusmão ,
M.G.M. Barreto ,
M.T. Paulino ,
J.F. da Silva ,
O.K. Seck ,
M.M.L. Gonçalves  and
M.S. Soares
R.P. Igreja*
Affiliation:
Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rua Professor Rodolpho Paulo Rocco, Rio de Janeiro, RJ21941-617, Brazil
M.F. Gusmão
Affiliation:
Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Rio de Janeiro21040-900, Brazil
M.G.M. Barreto
Affiliation:
Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Rio de Janeiro21040-900, Brazil
M.T. Paulino
Affiliation:
Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Rio de Janeiro21040-900, Brazil
J.F. da Silva
Affiliation:
FAETEC, Paracambi, Rio de Janeiro, Brazil
O.K. Seck
Affiliation:
Instituto Fernades Figueira, Fiocruz, Rio de Janeiro, Brazil
M.M.L. Gonçalves
Affiliation:
Departamento de Imunologia, Instituto de Microbiologia Professor Paulo de Góes, CCS, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
M.S. Soares
Affiliation:
Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Rio de Janeiro21040-900, Brazil
*
*Fax: +55 21 2512 7812 E-mail: rpigreja@cives.ufrj.br
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Abstract

Fifteen years after our first investigation, a follow-up study was carried out with the purpose of assessing the evolution of schistosomiasis in the locality of Sabugo, Paracambi, state of Rio de Janeiro, Brazil, an area with low prevalence of the disease. The coprological techniques adopted were spontaneous sedimentation and Kato-Katz. Out of the 1356 individuals assessed, 13 (1%) were infected with Schistosoma mansoni. From those, 10 were males, 12 were over 15 years old, and at least 11 had been infected in Sabugo. All patients presented either the intestinal or the hepato-intestinal form of the disease, and 8 (61.5%) harboured light parasitic loads. In 1990, there were 27 (2.7%) infected individuals; less than half harboured light parasitic loads, with the predominance of moderate and heavy forms. Although our results indicate an improvement in the epidemiological situation of schistosomiasis in Sabugo, transmission of the disease in the locality is still active, especially among young males, and tends to be acquired during leisure activities.

Type
Research Papers
Information
Journal of Helminthology , Volume 84 , Issue 3 , September 2010 , pp. 229 - 233
Copyright
Copyright © Cambridge University Press 2010

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