Prevalence of Candida bracarensis and Candida nivariensis in a Spanish collection of yeasts: comparison of results from a reference centre and from a population-based surveillance study of candidemia

Med Mycol. 2011 Jul;49(5):525-9. doi: 10.3109/13693786.2010.546373. Epub 2011 Jan 3.

Abstract

Two new species related to Candida glabrata, i.e., Candida nivariensis and Candida bracarensis, have been proposed. The occurrence of these species among isolates collected in a Spanish mycology reference laboratory in 2008-2009 was reviewed. In addition, strains recovered as part of an active population-based surveillance of candidemia conducted in Barcelona between 2002 and 2003 were also analyzed. Among 143 clinical isolates received in 2008-2009, three (2%) were identified as C. bracarensis and none as C. nivariensis through sequencing of their ribosomal DNA. Of the 31 strains initially identified as C. glabrata in the 2002-2003 population-based study (0.38 cases/100,000 population), none were found to belong to these related new species. Results from in vitro susceptibility studies of C. bracarensis isolates were comparable to those found with C. glabrata. Since new and cryptic species have been described, periodic surveillance including the use of molecular identification methods seems to be necessary in order to determine their frequency, geographical distribution and susceptibility profile.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antifungal Agents / pharmacology
  • Candida / classification*
  • Candida / drug effects
  • Candida / genetics
  • Candida / isolation & purification*
  • Candidemia / epidemiology*
  • Candidemia / microbiology*
  • DNA, Fungal / chemistry
  • DNA, Fungal / genetics
  • DNA, Ribosomal Spacer / chemistry
  • DNA, Ribosomal Spacer / genetics
  • Microbial Sensitivity Tests
  • Prevalence
  • Sequence Analysis, DNA
  • Spain / epidemiology

Substances

  • Antifungal Agents
  • DNA, Fungal
  • DNA, Ribosomal Spacer