Differentiation of fluorinated quinolone antibacterials with Neisseria gonorrhoeae isolates

Abstract
Clinical isolates of Neisseria gonorrhoeae were tested for growth inhibition by various quinolones. One acrosoxacin-resistant isolate was also resistant to several fluorinated quinolones with 7-heterocyclic substitution, but, inhibitory concentrations were not elevated for quinolones substituted with a methyl group in the corresponding position (nahdixic acid:position 7, S-25930:position 8) or unsubstituted (flumequine position 8). Isolates resistant to flumequine demonstrated elevated inhibitory concentrations for all quinolones examined

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