In vitro emergence of quinolone-resistant mutants of Escherichia coli, Enterobacter cloacae, and Serratia marcescens.
Norfloxacin- and ciprofloxacin-resistant mutants of several Enterobacter cloacae and Serratia marcescens isolates occurred at frequencies of greater than or equal to 10(-7)/CFU, which were higher than those of Escherichia coli isolates, in accordance with the increasing emergence of less-susceptible or resistant strains in clinical isolates of E. cloacae and S. marcescens.
Watanabe
M
M
Episome Institute, Gunma-ken, Japan.
Kotera
Y
Y
Yosue
K
K
Inoue
M
M
Mitsuhashi
S
S
D000890:Anti-Infective Agents / Q000494:pharmacology*; D002939:Ciprofloxacin / Q000494:pharmacology; D004352:Drug Resistance, Microbial; D004754:Enterobacter / Q000187:drug effects* / Q000235:genetics; D004755:Enterobacteriaceae / Q000187:drug effects*; D004926:Escherichia coli / Q000187:drug effects* / Q000235:genetics; D009154:Mutation; D009643:Norfloxacin / Q000494:pharmacology; D012706:Serratia marcescens / Q000187:drug effects* / Q000235:genetics
D000890:Anti-Infective Agents; D002939:Ciprofloxacin; D009643:Norfloxacin