Time-kill curves of P. aeruginosa KK27 colr7 (A), K. pneumoniae KP-MO-5 (B), and A. baumannii Ab4452 (C) treated with 4 μg/mL colistin (red lines), 18 μg/mL clofoctol (blue lines), or the same concentrations of colistin and clofoctol in combination (black lines). The untreated controls are shown with green lines. Data are mean values from three independent experiments, and the error bars represent standard deviations. The detection limit of the assay was 102 CFU/mL.