1.Identification and Antifungal Susceptibility Profiles of Cyberlindnera fabianii in Korea
Ji Hyun PARK ; Junsang OH ; Hyunkyu SANG ; Bhushan SHRESTHA ; Hyeyoung LEE ; Jehyun KOO ; Sung Il CHO ; Ji Seon CHOI ; Min Ha LEE ; Jayoung KIM ; Gi Ho SUNG
Mycobiology 2019;47(4):449-456
Invasive fungal infections caused by Cyberlindnera fabianii have recently increased. However, biochemical kits such as API 20 C AUX and Vitek-2C have misidentified this species as other Candida spp. such as C. pelliculosa or C. utilis due to no information of Cy. fabianii in yeast database. During our 2016–2017 surveys, eleven isolates of Cy. fabianii were obtained in International St. Mary's Hospital in Korea. Here, we describe its morphological and molecular characteristics and tested its antifungal susceptibility against nine antifungal agents. The sequences of the ITS region and the D1/D2 region of LSU revealed 100% identity with the sequences of Cy. fabianii. In comparison with the results from MALDI-TOF mass spectrometry, we found that Cy. fabianii can be distinguished from other species. In antifungal susceptibility test, voriconazole and echinocandins exhibited good antifungal activities against the majority of Cy. fabianii isolates despite the absence of standard criteria.
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