Agreement of the Kato-Katz test established by the WHO with samples fixed with sodium acetate analyzed at 6 months to diagnose intestinal geohelminthes

The aim of this study was to evaluate the performance of the Kato-Katz test (WHO version) with stool samples from a rural area, fixed with sodium acetate (SAF). The Kato-Katz test was used to compare unfixed samples (conventional test) with the same samples containing SAF fixative at time 0 and at 6...

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Detalles Bibliográficos
Autores Principales: Fernández-Niño, Julián Alfredo, Ramírez, Juan David, López, Myriam Consuelo, Moncada, Ligia Inés, Reyes, Patricia, Heredia, Rubén Darío
Formato: Artículo (Article)
Lenguaje:Inglés (English)
Publicado: Elsevier 2015
Materias:
Acceso en línea:https://repository.urosario.edu.co/handle/10336/23619
https://doi.org/10.1016/j.actatropica.2015.03.004
Descripción
Sumario:The aim of this study was to evaluate the performance of the Kato-Katz test (WHO version) with stool samples from a rural area, fixed with sodium acetate (SAF). The Kato-Katz test was used to compare unfixed samples (conventional test) with the same samples containing SAF fixative at time 0 and at 6 months. The study included stools from 154 subjects.A marginally statistically significant decrease in prevalence was estimated only for hookworm, when comparing unfixed samples versus the SAF fixed samples read at 6 months (. p=. 0.06). A significant reduction in parasite load was found for hookworm (. p less than . 0.01) and Trichuris trichiura (. p less than . 0.01) between the unfixed and the fixed sample read at 6 months, but not for Ascaris lumbricoides (. p=. 0.10). This research suggests that the SAF fixative solution is a good option for transporting samples for diagnosis, especially in rural areas in developing countries. © 2015 Elsevier B.V.