Quinolone Activity Against Ciprofloxacin-Resistant S. pneumoniae*
Isolates Inhibited (Cumulative %)
*Resistance to ciprofloxacin defined as ?4 ?g/mL. Yellow arrow = MIC90 in wild type strains
Adapted from Chen et al. N Engl J Med. 1999. White Bar = MIC90 in cipro resistant strains