VITEK-32 and Microscan AS-4 in External Quality Assessment of Microbes: Their Application and Comparison / 中华医院感染学杂志

ABSTRACT

OBJECTIVE By using the VITEK32 and Microscan AS-4 microbiology identification system to identify the external quality control(QC) strains of microbes,to find out the difference and the coincidence degree with quality assessment result of the two systems. METHODS Thirty nine various strains of QC bacteria were isolated and cultured according to operation rule,and were identified by VITEK-32 and Microscan AS-4 and compared within them. RESULTS The coincidence rate of VITEK-32 and Microscan AS-4 to identify directly their species was 76.9% and 69.5% for 39 strains of QC bacteria,It was 89.7% and 76.9% after the serum or further tests,and the coincidence rate was 90.9% and 81.8% in 22 strains of Gram negatives,and 88.2% and 58.8% in 17 strains of Gram positives. CONCLUSIONS The detectable rate and coincidence rate of VITEK-32 are superior to those of Microscan AS-4,especially in the identification of Enterococcus and Streptococcus,the accuracy of Gram negatives is good,and of Gram positives is short,both them could not identify Salmonella and Shigella to their species.