Fig. 2

Time-kill curves for ciprofloxacin and six different Neisseria gonorrhoeae strains. Time-kill curves for WHO G (a), WHO K (b), WHO L (c), WHO M (d), WHO N (e) and DG666 (f) are shown. Twelve doubling dilutions are plotted, the highest concentration (black line) corresponds to 16× MIC as measured with Etest and growth in absence of antimicrobial is drawn in red. The antimicrobial was added at timepoint 0 and monitored until 6 h. The limit of detection in the assay was 100 CFU/ml