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Evaluation of two coproscopic techniques for the diagnosis of schistosomiasis in a low-transmission area in the state of Minas Gerais, Brazil
Siqueira, Liliane Maria Vidal; Coelho, Paulo Marcos Zech; Oliveira, Áureo Almeida de; Massara, Cristiano Lara; Carneiro, Nídia Francisca de Figueiredo; Lima, Anna Carolina Lustosa; Enk, Martin Johannes.
Affiliation
  • Siqueira, Liliane Maria Vidal; s.af
  • Coelho, Paulo Marcos Zech; s.af
  • Oliveira, Áureo Almeida de; s.af
  • Massara, Cristiano Lara; Instituto de Pesquisas René Rachou-Fiocruz. Laboratório de Helmintologia e Malacologia Médica. Belo Horizonte. BR
  • Carneiro, Nídia Francisca de Figueiredo; Centro de Controle de Zoonoses. Montes Claros. BR
  • Lima, Anna Carolina Lustosa; s.af
  • Enk, Martin Johannes; Universidade Vale do Rio Doce. Laboratório de Parasitologia. Governador Valadares. BR
Mem. Inst. Oswaldo Cruz ; 106(7): 844-850, Nov. 2011. ilus, graf, tab
Article in En | LILACS | ID: lil-606648
Responsible library: BR1.1
ABSTRACT
This population study, which evaluated two parasitological methods for the diagnosis of schistosomiasis mansoni, was performed in a low-transmission area in Pedra Preta, Montes Claros, Minas Gerais, Brazil. A total of 201 inhabitants of the rural area participated in this research. Four stool samples were obtained from all participants and analysed using the Kato-Katz method (18 slides) and a commercial test, the TF-Test®, which was performed quantitatively. The data were analysed to determine prevalence, the sensitivity of the diagnostic methods, the worm burden and the definition of the "gold standard", which was obtained by totalling the results of all samples examined using the Kato-Katz technique and the TF-Test®. The results showed that the prevalence obtained from the examination of one Kato-Katz slide (the methodology adopted by the Brazilian control programme) was 8 percent compared to 35.8 percent from the "gold standard", which was a 4.5-fold difference. This result indicates that the prevalence of schistosomiasis in so-called low-transmission areas is significantly underestimated.
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Full text: 1 Index: LILACS Main subject: Parasite Egg Count / Schistosoma mansoni / Schistosomiasis mansoni / Feces Type of study: Diagnostic_studies / Evaluation_studies / Prevalence_studies / Risk_factors_studies Limits: Aged80 / Animals / Female / Humans / Male Country/Region as subject: America do sul / Brasil Language: En Journal: Mem. Inst. Oswaldo Cruz Journal subject: MEDICINA TROPICAL / PARASITOLOGIA Year: 2011 Type: Article

Full text: 1 Index: LILACS Main subject: Parasite Egg Count / Schistosoma mansoni / Schistosomiasis mansoni / Feces Type of study: Diagnostic_studies / Evaluation_studies / Prevalence_studies / Risk_factors_studies Limits: Aged80 / Animals / Female / Humans / Male Country/Region as subject: America do sul / Brasil Language: En Journal: Mem. Inst. Oswaldo Cruz Journal subject: MEDICINA TROPICAL / PARASITOLOGIA Year: 2011 Type: Article