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Multicenter Study
. 2003 Jun;20(2):46-51.

[Prevalence of Candida albican serotypes in blood isolates in Chile, and first report of Candida dubliniensis candidemia]

[Article in Spanish]
Víctor Silva  1 , Macarena Cabrera, María Cristina Díaz, Claudia Abarca, Germán Hermosilla
Affiliations
  • PMID: 15456370
Multicenter Study

[Prevalence of Candida albican serotypes in blood isolates in Chile, and first report of Candida dubliniensis candidemia]

[Article in Spanish]
Víctor Silva et al. Rev Iberoam Micol. 2003 Jun.

Abstract

Our main goal was to determine the prevalence of C. albicans serotypes isolates from blood cultures and identify the presence of C. dubliniensis. We studied 47 strains identified as C. albicans by conventional methods, 28 were isolated from children and 19 from adult patients. The strains were re-identified by standard methods and phenotypic screening as xylose assimilation and growth at 42 degrees C. API ID 32C (bioMérieux) was employed with the C. dubliniensis suspected strains and confirmation was made by molecular fingerprinting using random amplified polymorphic DNA (RAPD). The C. albicans serotype was determined by agglutination with antiserum anti-antigen 6 from cell wall (Candida Check, Iatron Inc., Japan) and the in vitro susceptibilities were evaluated by a microdilution method. From 47 strains, 46 were confirmed as C. albicans, 31 of them (67%) were serotype A. Adult patients presented a high prevalence of serotype A (95%) and children presented a frequency of 52% of the serotype B (p<0.05). We confirmed the identification of C. dubliniensis in one strain isolated from an infant. All serotype B strains were susceptible to fluconazole, itraconazole and amphotericin B. On the other hand, 3% and 6% of serotype A strains were "susceptible dose dependent" to fluconazole and itraconazole, respectively. C. albicans serotype A was predominant in adult candidemia and its distribution was homogenous in children patients. All strains were highly susceptible to antifungals. We report here the first case of C. dubliniensis candidemia in South America.

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