Identification and antimicrobial susceptibility of 52 pathogenic fungi causing candidemia in Nanchang City of Jiangxi Province
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R379.3

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    Abstract:

    ObjectiveTo explore the constitute and antimicrobial susceptibility of pathogenic fungi causing candidemia in Nanchang City of Jiangxi Province. MethodsCandida spp. isolated from blood specimens of patients at a hospital in Nanchang in MarchOctober 2015 were collected, fungal strains were identified by amplifying the internal transcribed spacer (ITS) and large ribosomal subunit (D1/D2 region of 26rRNA), antifungal susceptibility of fungi was detected. ResultsA total of 1 332 positive blood culture specimens were collected, including 74 fungal positive specimens, accounting for 5.56%, 52 strains of Candida spp. were obtained, most were Candida tropicalis (n=17,32.69%),followed by Candida albicans(n=16, 30.77%) and Candida parapsilosis complex (n=16, 30.77%). Identification results of ITS and D1/D2 region were identical. 52 strains of Candida spp. were sensitive to both micafungin and caspofungin, epidemiological cutoff value(ECV) of amphotericin B showed that 52 strains were all wild type. Resistance rates of Candida tropicalis to fluconazole and voriconazole were 29.41% and 17.64% respectively, ECV of itraconazole and posaconazole showed that wild type accounted for 82.35% and 94.12% respectively;resistance rates of Candida albicans to fluconazol and voriconazole were 93.75% and 81.25% respectively, ECV of itraconazole and posaconazole showed that wild type accounted for 75.00% and 81.25% respectively;Candida parapsilosis complex strains were sensitive to both fluconazole and voriconazole, ECV of itraconazole and posaconazole showed that all were wild type;  all Candida glabrata strains had intermediate resistance rates to fluconazole, ECV of voriconazole, itraconazole, and posaconazole showed that wild type accounted for 66.67%, 100.00%, and 100.00% respectively. ConclusionCandida tropicalis is the most common pathogenic fungus causing candidemia in Nanchang of Jiangxi, followed by Candida albicans and Candida parapsilosis complex. Azole, echinocandin, and amphotericin B are still firstline antifungal agents.

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肖喻,刘洋,王千,等.江西南昌市52株假丝酵母菌血症病原真菌的鉴定及其药敏特征[J].中国感染控制杂志英文版,2017,16(9):793-797. DOI:10.3969/j. issn.1671-9638.2017.09.001.
XIAO Yu, LIU Yang, WANG Qian, et al. Identification and antimicrobial susceptibility of 52 pathogenic fungi causing candidemia in Nanchang City of Jiangxi Province[J]. Chin J Infect Control, 2017,16(9):793-797. DOI:10.3969/j. issn.1671-9638.2017.09.001.

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History
  • Received:October 09,2016
  • Revised:December 26,2016
  • Adopted:
  • Online: September 13,2017
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