Selection of Streptococcus pneumoniae mutants having reduced susceptibility to moxifloxacin and levofloxacin

被引:78
作者
Li, XY [1 ]
Zhao, XL [1 ]
Drlica, K [1 ]
机构
[1] Publ Hlth Res Inst, New York, NY 10016 USA
关键词
D O I
10.1128/AAC.46.2.522-524.2002
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
With Streptococcus pneumoniae, moxifloxacin was 4- and 10-fold more effective than levofloxacin at restricting selection of resistant mutants and at killing resistant mutants, respectively. The selection frequency for first-step topoisomerase mutants was 1,000 times lower for moxifloxacin than for levofloxacin; this difference was lost when second-step mutants were selected.
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页码:522 / 524
页数:3
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