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Comparison of Etest to broth microdilution method for testing Streptococcus pneumoniae susceptibility to levofloxacin
S Hunt Gerardo1, D M Citron, M C Claros
1R. M. Alden Research Laboratory, Santa Monica/UCLA Medical Center 90404, USA.
Antimicrobial Agents and Chemotherapy
|October 1, 1996
Abstract:
When the Etest was compared to broth microdilution for susceptibility testing of Streptococcus pneumoniae, levofloxacin, erythromycin, and penicillin results correlated for both methods; azithromycin and clarithromycin showed discrepancies of > or = 2 dilutions for 95.8% and 31.5% of the isolates, respectively. Levofloxacin was active against 141 of 142 isolates (< or = 2.0 micrograms/ml), making it a potentially useful new fluoroquinolone.