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Low Prevalence of Antifungal Resistant Candida Africana, in the C. Albicans Complex Causing Vulvovaginal Candidiasis Publisher



Farahyar S1, 2 ; Izadi S2 ; Razmjou E2 ; Falahati M2 ; Roudbary M2 ; Ashrafikhozani M2 ; Ansari S3 ; Fattahi A4 ; Ghahrimobaser Z5 ; Rahimi M6
Authors
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Authors Affiliations
  1. 1. Microbial Biotechnology Research Center (MBiRC), Iran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Medical Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Medical Parasitology and Mycology, School of Medicine, Shahid Beheshti, University of Medical Sciences, Tehran, Iran
  4. 4. Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. International Campus, Iran University of Medical Sciences, Tehran, Iran
  6. 6. Department of Gynecology, Shahid Akbar Abadi Hospital, Iran University of Medical Sciences, Tehran, Iran

Source: Heliyon Published:2020


Abstract

The Candida (C.) albicans complex includes C. albicans, C. dubliniensis, C. stellatoidea, and C. africana, with the last mentioned as an important emerging agent of vulvovaginal candidiasis (VVC). The aim of the study was to identify C. africana and C. dubliniensis and assess their drug susceptibility in vaginitis. One-hundred Candida isolates of the C. albicans complex from women diagnosed with vaginitis and from vaginal samples in the culture collection of a medical mycology laboratory were examined. Species of the C. albicans complex were identified with conventional and molecular methods using polymerase chain reaction (PCR) for amplification and sequencing of the internal transcribed spacer (ITS) region, PCR for partial amplification of hyphal wall protein 1 (HWP1) gene and duplex PCR. The effects of antifungal drugs were evaluated according to standard broth microdilution protocols. Ninety-seven C. albicans (97%) and three C. africana (3%) isolates were identified. Results of susceptibility testing revealed one isolate of C. africana to be resistant to both clotrimazole and fluconazole, and one showed reduced susceptibility to itraconazole. Identification of Candida species especially C. africana in vaginitis is crucial, there are varying levels of resistance to antifungal drugs. © 2020; Microbiology; Mycology; Microbial genomics; DNA sequencing; Antimicrobial; Women's health; Candida albicans complex; Candida dubliniensis; Candida africana; Drug susceptibility; Vulvovaginal candidiasis; HWP1. © 2020