Evaluation of two coproscopic techniques for the diagnosis of schistosomiasis in a low-transmission area in the state of Minas Gerais, Brazil

Memórias do Instituto Oswaldo Cruz

Liliane Maria Vidal Siqueira¹  Paulo Marcos Zech Coelho¹  Áureo Almeida De Oliveira¹  Cristiano Lara Massara²  Nídia Francisca De Figueiredo Carneiro¹  Anna Carolina Lustosa Lima¹  Martin Johannes Enk¹ 

[1] ,Instituto de Pesquisas René Rachou-Fiocruz Laboratório de Helmintologia e Malacologia Médica Belo Horizonte MG ,Brasil

关键词: Schistosoma mansoni;    schistosomiasis;    diagnosis;    control;    low-transmission area;    Brazil;   

DOI  :  10.1590/S0074-02762011000700010

来源: SciELO

【 摘 要 】

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% compared to 35.8% 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.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License