Schistosomiasis in the Amazon region: is the current diagnostic strategy still appropriate?

Abstract INTRODUCTION: This study analyzed the performance of the Kato Katz technique in detecting intestinal schistosomiasis in the State of Pará. METHODS: Of three stool samples provided by each of 380 participants, a total of 16 Kato Katz slides were examined to define the reference value (RV) of...

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Bibliographic Details
Published in:Revista da Sociedade Brasileira de Medicina Tropical
Main Authors: Sergei Rodrigo Magalhães de Sousa, Alessandra de Queiroz Carvalho, Joyce Favacho Nogueira Cardoso, Paulo Marcos Zech Coelho, Stefan Michael Geiger, Martin Johannes Enk
Format: Article in Journal/Newspaper
Language:English
Published: Sociedade Brasileira de Medicina Tropical (SBMT)
Subjects:
Schistosomiasis
Schistosoma mansoni
Kato Katz
Diagnostics
Prevalence
Amazon region
Arctic medicine. Tropical medicine
RC955-962
Arctic
Online Access:https://doi.org/10.1590/0037-8682-0097-2017
https://doaj.org/article/fe795c759a7b4c6385ce3058aab2f695
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Summary:Abstract INTRODUCTION: This study analyzed the performance of the Kato Katz technique in detecting intestinal schistosomiasis in the State of Pará. METHODS: Of three stool samples provided by each of 380 participants, a total of 16 Kato Katz slides were examined to define the reference value (RV) of positives for comparisons. RESULTS: The RV revealed 37 (9.7%) infected participants in contrast to 10 (2.6%) according to a single slide. CONCLUSIONS: This significant underestimation of the infection rate gives reason to discuss if the current classification of prevalence levels reflects the real situation, principally in low transmission areas, like the Amazon region.

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