Fig. 1a: Development of a bacteria population as described by the MIC concept. x-axis is the time axis (t measured in hours) y-axis gives the concentration C of meropenem in mg/l. The z-axis gives the logarithm of the number N[C, t] of S. aureus. N[C, t] as specified in (6), with R0 = 0.33 /h, MIC = 0.029 mg/l. Figure shows the development of the population when MBC = 3 MIC.