Comparison of Etest to broth microdilution method for testing Streptococcus pneumoniae susceptibility to levofloxacin and three macrolides |
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Authors: | S Hunt Gerardo DM Citron MC Claros EJ Goldstein |
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Affiliation: | R. M. Alden Research Laboratory, Santa Monica/UCLA Medical Center 90404, USA. |
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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. |
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