Among non-albicans Candida species, Candida glabrata is the leading cause of invasive infections in critically ill patients. It is intrinsically less susceptible to fluconazole/other azoles that limits therapeutic options. This study determined distribution of C. glabrata in clinical specimens and determined their susceptibility to fluconazole, caspofungin, and amphotericin B by E test. During 8-year period (2011-2018), 1,410 isolates were obtained from 1,410 patients including 600, 409, and 131 isolates from respiratory, urine, and bloodstream specimens, respectively. Proportion of C. glabrata isolates was nearly the same during the two 4-year periods. Demographic details were available from 731 patients and susceptibility data for 1,225 isolates. C. glabrata isolation from bloodstream, respiratory, and urine specimens was higher from elderly (>60 years) versus younger patients. More bloodstream and urine isolates were obtained from female patients, however, more respiratory isolates were recovered from male patients (p = <0.05). Resistance to all three drugs increased during 2015-2018 compared with 2011-2014 but was more pronounced for fluconazole (p = 0.001). More isolates with reduced susceptibility to fluconazole/amphotericin B were obtained from elderly patients versus younger subjects and urine versus respiratory samples (p = <0.05). Our data show increasing trends of reduced susceptibility to antifungals, particularly fluconazole, among clinical C. glabrata isolates in Kuwait. Most isolates with reduced susceptibility to fluconazole/amphotericin B were obtained from elderly patients and urine/respiratory samples with urinary tract appearing as the most favorable niche for antifungal drug resistance development. The study also highlights the need for continued surveillance and better antifungal drug stewardship to control resistance development in C. glabrata.

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