细菌素作为医院内肺炎克雷伯菌感染分析的工具
Bacteriocins as tools in analysis of nosocomial Klebsiella pneumoniae infections.
作者信息
Bauernfeind A, Petermüller C, Schneider R
出版信息
J Clin Microbiol. 1981 Jul;14(1):15-9. doi: 10.1128/jcm.14.1.15-19.1981.
Abstract
Epidemiological analysis of isolates from nosocomial infections caused by Klebsiella pneumoniae was improved by the use of bacteriocins in addition to capsular serotyping. Screening for bacteriocins produced by 77 reference strains for capsular serotyping identified 39 strains, and 8 of these strains were selected as a typing set. Using this set, we found that 241 to 259 (91%) nonepidemic clinical isolates of K. pneumoniae were inhibited by one or more of the eight producers. Of the most frequent bacteriocin type there were 31 examples (12%). High reproducibility of typing patterns (83.3%) and easy practicability of typing were achieved with a streak-and-point method avoiding the use of suspensions of bacteriocins and the risk of instability. The Klebsiella bacteriocins were active also on Enterobacter and Shigella species and on Escherichia coli strains, but were ineffective on other Enterobacteriacae.
摘要
除了荚膜血清分型外，使用细菌素改进了肺炎克雷伯菌引起的医院感染分离株的流行病学分析。对77株用于荚膜血清分型的参考菌株产生的细菌素进行筛选，鉴定出39株，其中8株被选作分型组。使用该分型组，我们发现241至259株（91%）非流行的肺炎克雷伯菌临床分离株被8种产生菌中的一种或多种抑制。最常见的细菌素类型有31例（12%）。采用划线点种法避免使用细菌素悬液和不稳定性风险，实现了分型模式的高重现性（83.3%）和分型的易操作性。克雷伯菌细菌素对肠杆菌属、志贺菌属和大肠杆菌菌株也有活性，但对其他肠杆菌科细菌无效。
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