Clinical isolate of Citrobacter freundii highly resistant to new quinolones

Author:

Aoyama H1,Fujimaki K1,Sato K1,Fujii T1,Inoue M1,Hirai K1,Mitsuhashi S1

Affiliation:

1. Episome Institute, Gunma, Japan.

Abstract

About 30% of 150 recent clinical isolates of Citrobacter freundii were resistant to greater than or equal to 3.13 micrograms of norfloxacin and ofloxacin per ml. Study of one quinolone-resistant strain for which the norfloxacin MIC was 100 micrograms/ml suggested that resistance was associated with both an altered A subunit of DNA gyrase and reduction in drug uptake accompanied by a decrease in an outer membrane protein.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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