Characterization of clinical Streptococcus pneumoniae strains from Germany with decreased susceptibility to fluoroquinolones

被引:10
作者
Reinert, RR
Al-Lahham, A
Lütticken, R
Boos, M
Schmitz, FJ
机构
[1] Univ Aachen, Inst Med Microbiol, Natl Reference Ctr Streptococci, D-52074 Aachen, Germany
[2] Univ Hosp Dusseldorf, Inst Med Microbiol & Virol, Dusseldorf, Germany
关键词
D O I
10.1093/jac/dkf036
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Fourteen pneumococcal strains isolated in three nationwide studies were characterized for amino acid changes in the enzymes GyrA, GyrB, ParC and ParE, and for the in vitro activity of eight fluoroquinolones and the new non-fluorinated quinolone BMS 284756. Gemifloxacin and BMS 284756 exhibited the best in vitro activity against all 14 isolates tested. In nine of the 14 isolates mainly classical alterations in ParC (D83N/Y, S79Y/F), as well as rarer alterations such as S80P and D78N, contributed to the decreased susceptibility to fluoroquinolones. In two of the 14 isolates the classical alteration in GyrA (S81F) was found. In only one isolate did alterations in ParC and GyrA exist in parallel.
引用
收藏
页码:1015 / 1018
页数:4
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