EPIDEMIOLOGY OF AN ENDEMIC STRAIN OF BETA-LACTAMASE-PRODUCING ENTEROCOCCUS-FAECALIS

被引:19
作者
PATTERSON, JE
SINGH, KV
MURRAY, BE
机构
[1] UNIV TEXAS,HLTH SCI CTR,DEPT MED,HOUSTON,TX 77030
[2] YALE UNIV,SCH MED,DEPT LAB MED,NEW HAVEN,CT 06510
关键词
D O I
10.1128/JCM.29.11.2513-2516.1991
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Three previously reported beta-lactamase-producing (Bla+) enterococci with distinct but related antibiotic resistance phenotypes, plasmid profiles, and plasmid restriction endonuclease digestion patterns were isolated at the West Haven Veterans Administration Medical Center in Connecticut (WH245, WH257, WH571) in July 1986 and March 1987. In this study, we analyzed the whole-cell DNA of these isolates by using pulsed-field gel electrophoresis of large chromosomal fragments generated by SmaI digestion. The three West Haven isolates showed very similar chromosomal restriction endonuclease digestion patterns; these patterns were distinct from those of Bla+ and Bla- enterococci from other geographic areas and from those of other West Haven enterococci, suggesting an endemic Bla+ strain at this institution. Clinical information regarding these isolates suggests that exposure to the genitourinary clinic, obstructive urinary tract disease, and frequent antibiotic therapy may have been common risk factors for acquisition of this endemic strain.
引用
收藏
页码:2513 / 2516
页数:4
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