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Background  Vaginal candidiasis is frequent in women of reproductive age. Accurate identification  Candida  provides helpful information for successful therapy and epidemiology study; however, there are very limited data from the Vietnam have been reported. This study was performed to determine the prevalence, species distribution of yeast causing vaginal discharge and antifungal susceptibility patterns of  Candida albicans  among symptomatic non-pregnant women of reproductive age.    Methods  Vaginal discharge samples were collected from 462 women of reproductive age in Hanoi, Vietnam between Sep 2019 and Oct 2020. Vaginal swabs from these patients were examined by direct microscopic examination (10% KOH). CHROMagar™ Candida medium and Sabouraud dextrose agar supplemented with chloramphenicol (0.5 g/l) were used to isolate yeast, and species identification was performed using morphological tests and molecular tools (PCR and sequencing). Antifungal susceptibility testing was determined according to the Clinical and Laboratory Standards Institute guidelines (M27-A3 and M27-S4).    Results  The prevalence of vaginal yeast colonization in non-pregnant women was 51.3% of 462 participants. Nine different yeast species were identified. Among these isolates,  C. albicans  (51.37%) was the most frequent, followed by  C. parapsilosis  (25.88%),  C. glabrata  (11.37%),  C. tropicalis  (4.31%),  C. krusei  (3.92%),  C. africana  (1.57%),  Saccharomyces cerevisiae  (0.78%),  C. nivariensis  (1 isolates, 0.39%), and  C. lusitaniae  (1 isolates, 0.39%), respectively. Among  C. albicans,  all 46 isolates were 100% susceptible to micafungin, caspofungin, and miconazole. The susceptibility rates to amphotericine B, 5-flucytosine, fluconazole, itraconazole and voriconazole were 95.65, 91.30, 91.30, 82.61 and 86.95%, respectively.    Conclusions  The prevalence of VVC among symptomatic non-pregnant women of reproductive age in Vietnam was higher than many parts of the world. The high frequency of non- albicans Candida  species, which were often more resistant to antifungal agents, was a notable feature. Resistance rates of vaginal  C. albicans  isolates to antifungal agents was low. Our findings suggest that continued surveillance of changes in species distribution and susceptibility to antifungals should be routinely screened and treated.    Supplementary Information  The online version contains supplementary material available at 10.1186/s12879-021-06192-7.

bmc infectious diseases

Prevalence, species distribution and antifungal susceptibility of Candida albicans causing vaginal discharge among symptomatic non-pregnant women of reproductive age at a tertiary care hospital, Vietnam