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. 1993 Jul;31(7):1924-6.
doi: 10.1128/jcm.31.7.1924-1926.1993.

Levofloxacin disk potency and tentative interpretive criteria for susceptibility tests

M A Pfaller  1 , A L Barry, P C Fuchs
Affiliations

Levofloxacin disk potency and tentative interpretive criteria for susceptibility tests

M A Pfaller et al. J Clin Microbiol. 1993 Jul.

Abstract

Levofloxacin disk susceptibility test criteria were evaluated by testing 350 bacterial isolates. Either 5- or 10-micrograms disks could be used satisfactorily. A 5-micrograms levofloxacin disk with zone size breakpoints of < or = 12 mm for resistance (MIC, > or = 8.0 micrograms/ml) and > or = 16 mm for susceptibility (MIC, < or = 2.0 micrograms/ml) is recommended.

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