Figure 2From: Sub-inhibitory concentrations of vancomycin prevent quinolone-resistance in a penicillin-resistant isolate of Streptococcus pneumoniaeshows selection of ciprofloxacin resistant mutants of Streptococcus pneumoniae WB4 exposed to stepwise increasing concentrations of ciprofloxacin alone or in combination with sub-MIC concentration (¼ MIC) of vancomycin.Back to article page