Candida spp.: manual identification (reference method) and automated identification (Vitek system platform)

Yeasts are becoming a common cause of nosocomial fungal infections that affect immunocompromised patients. Such infections can evolve into sepsis, whose mortality rate is high. This study aimed to evaluate the viability of Candida species identification by the automated system Vitek-Biomerieux (Durh...

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Published inThe journal of venomous animals and toxins including tropical diseases Vol. 18; no. 3; pp. 335 - 339
Main Authors Mondelli, AL, Niéro-Melo, L, Bagagli, E, Camargo, CH, Bruder-Nascimento, A, Sugizaki, MF, Carneiro, MV, Villas Boas, PJF
Format Journal Article
LanguageEnglish
Portuguese
Published Centro de Estudos de Venenos e Animais Peçonhentos 2012
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Summary:Yeasts are becoming a common cause of nosocomial fungal infections that affect immunocompromised patients. Such infections can evolve into sepsis, whose mortality rate is high. This study aimed to evaluate the viability of Candida species identification by the automated system Vitek-Biomerieux (Durham, USA). Ninety-eight medical charts referencing the Candida spp. samples available for the study were retrospectively analyzed. The system Vitek-Biomerieux with Candida identification card is recommended for laboratory routine use and presents 80.6% agreement with the reference method. By separate analysis of species, 13.5% of C. parapsilosis samples differed from the reference method, while the Vitek system wrongly identified them as C. tropicalis, C. lusitaneae or as Candida albicans. C. glabrata presented a discrepancy of only one sample (25%), and was identified by Vitek as C. parapsilosis. C. guilliermondii also differed in only one sample (33.3%), being identified as Candida spp. All C. albicans, C. tropicalis and C. lusitaneae samples were identified correctly.
ISSN:1678-9199
1678-9199
DOI:10.1590/S1678-91992012000300011