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Epidemiological analysis of nosocomial Candida infections has gained importance due to an increase in these infections during the recent years. This study investigated the prevalence of clinical infections of Candida in anesthesiology intensive care unit patients, and ascertains the level of genetic diversity in the Candida species. A total of 70 Candida isolates, consisting of 42 Candida albicans, 16 Candida glabrata and 12 Candida tropicalis strains isolated from various clinical sites of infection of anesthesiology intensive care unit patients, were analysed. The susceptibility of the isolates against amphotericin B and fluconazole was determined by microdilution method according to Clinical and Laboratory Standards Institute M27-A2 standards. The strains were typed by random amplified polymorphic DNA (RAPD)-PCR using OPE-03, OPE-18, RP4-2 and AP50-1 primers. In the patients with Candida infections, most isolates exhibited different RAPD patterns. Only three C. albicans pairs isolated within a short time period had the same RAPD pattern. Most of the Candida infections in the anesthesiology intensive care unit of our hospital seem to be caused by endogenous strains. Exogenous spread of C. albicans infections occurred less frequently.