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. 1990 Jan;34(1):173-5.
doi: 10.1128/AAC.34.1.173.

In vitro emergence of quinolone-resistant mutants of Escherichia coli, Enterobacter cloacae, and Serratia marcescens

M Watanabe  1 , Y Kotera, K Yosue, M Inoue, S Mitsuhashi
Affiliations

In vitro emergence of quinolone-resistant mutants of Escherichia coli, Enterobacter cloacae, and Serratia marcescens

M Watanabe et al. Antimicrob Agents Chemother. 1990 Jan.

Abstract

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.

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