In Vitro Activities of BMS-284756 against Chlamydia trachomatis and Recent Clinical Isolates of Chlamydia pneumoniae

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Abstract
The in vitro activities of BMS-284756 (a novel des-fluoroquinolone), levofloxacin, moxifloxacin, and clarithromycin were tested against 5 strains of Chlamydia trachomatis and 20 isolates of Chlamydia pneumoniae . The MIC at which 90% of the isolates were inhibited and the minimal bactericidal concentration at which 90% of the isolates were killed by BMS-284756 for all isolates of C. pneumoniae and C. trachomatis was 0.015 μg/ml (range, 0.015 to 0.03 μg/ml). BMS-284756 was the most active quinolone tested.