Fig. 3
Macrophage killing capacity over time. a-c Macrophage associated S. aureus mortality rate (MAbacterial death) over time following exposure of initial bacterial inoculum sizes of 105 (A, MOI 0.1), 106 (B, MOI 1) or 107 (C, MOI 10) CFU/mL to macrophages and to different concentrations of cephalexin. Cephalexin concentrations are expressed as multiples of the MIC (0 MIC = 0 μg/mL, 1 MIC = 8 μg/mL, 16 MIC = 128 μg/mL). Each symbol represents the mean of results from three experiments