Tasneem Umber, Siddiqui Maryam Tahir, Faryal Rani, Shah Aamer Ali
Department of Microbiology, Quaid-i-Azam University, Islamabad, Pakistan.
J Pak Med Assoc. 2017 Jul;67(7):986-991.
To determine the prevalence and antifungal susceptibility pattern of Candida species.
This prospective, cross-sectional study was conducted at the Quaid-e-Azam International Hospital, Islamabad, Pakistan, from January 2014 to February 2015, and comprised different clinical samples which were analysed for various types of microbial infections. Species differentiation was confirmed by biochemical and molecular methods. Antifungal susceptibility against amphotericin B, fluconazole and voriconazole was determined by Clinical and Laboratory Standards Institute M44-A disk diffusion method.
Of the 219 Candida isolates, majority of them were isolated from urine 78(35.6%) and vaginal swabs 59(26.9%). Moreover, 144(65.8%) samples were of females and 75(34.2%) were of males. Candida albicans 128(58.45%) was the most predominant species followed by Candida glabrata 30(13.69%), Candida tropicalis 26(11.87%), Candida krusei 17(7.76%), Candida parapsilosis 12(5.47%), Candida dubliniensis 3(1.37%) and Candida lusitaniae 3(1.37). All isolates were least susceptible to amphotericin B with a susceptibility rate of 213(97.26%). The highest resistance was found for voriconazole 40(18.26%) compared to fluconazole 32(14.61%).
Candida species possessed high resistance rate against various antifungal agents.
确定念珠菌属的患病率及抗真菌药敏模式。
本前瞻性横断面研究于2014年1月至2015年2月在巴基斯坦伊斯兰堡的真纳国际医院进行,纳入了不同临床样本,对各种类型的微生物感染进行分析。通过生化和分子方法确认菌种分化。采用临床和实验室标准协会M44 - A纸片扩散法测定对两性霉素B、氟康唑和伏立康唑的抗真菌药敏。
在219株念珠菌分离株中,大多数分离自尿液78株(35.6%)和阴道拭子59株(26.9%)。此外,144例(65.8%)样本为女性,75例(34.2%)为男性。白色念珠菌128株(58.45%)是最主要的菌种,其次是光滑念珠菌30株(13.69%)、热带念珠菌26株(11.87%)、克柔念珠菌17株(7.76%)、近平滑念珠菌12株(5.47%)、都柏林念珠菌3株(1.37%)和葡萄牙念珠菌3株(1.37%)。所有分离株对两性霉素B最不敏感,敏感率为213株(97.26%)。与氟康唑32株(14.61%)相比,伏立康唑的耐药率最高,为40株(18.26%)。
念珠菌属对各种抗真菌药物具有较高的耐药率。