Perry J L, Miller G R, Carr D L
Clinical Microbiology Laboratories, Veterans Administration Medical Center, Wichita, Kansas.
J Clin Microbiol. 1990 Mar;28(3):614-5. doi: 10.1128/jcm.28.3.614-615.1990.
A total of 706 yeast isolates were evaluated in parallel by the Candida albicans Screen (CAS; Carr-Scarborough Microbiologicals, Inc., Stone Mountain, Ga.) test and the germ tube (GT) test in comparison with the API 20C Yeast Identification System. The CAS and GT tests correctly identified 419 of the 422 isolates of C. albicans (99.3%). Two of the false-negative reactions occurring with the CAS were with GT-negative strains of C. albicans. There were two false-positive CAS reactions involving a single strain each of C. parapsilosis and C. tropicalis. Sensitivity and specificity for both tests exceeded 99%, with positive and negative predictive values of 99 and 98%, respectively.
总共706株酵母分离株通过白色念珠菌筛选(CAS;卡尔-斯卡伯勒微生物公司,佐治亚州斯通山)试验和芽管(GT)试验进行平行评估,并与API 20C酵母鉴定系统进行比较。CAS试验和GT试验正确鉴定出422株白色念珠菌分离株中的419株(99.3%)。CAS试验出现的两例假阴性反应是针对白色念珠菌的GT阴性菌株。有两例假阳性CAS反应,分别涉及近平滑念珠菌和热带念珠菌的单个菌株。两种试验的敏感性和特异性均超过99%,阳性预测值和阴性预测值分别为99%和98%。