FIG. 3.
Quantitative change in CFU/ml and qualitative interpretation. Changes in colony counts ±1 × 101 were interpreted as indifference. The concentrations used were as follows: tigecycline (Tig)-amikacin (Amik), 0.125 and 32 mg/liter, respectively; tigecycline and meropenem (Mero), 0.125 and 8 mg/liter, respectively; tigecycline and imipenem (Imi), 0.125 and 4 mg/liter, respectively; tigecycline and ciprofloxacin (Cip), 0.125 and 1 mg/liter, respectively; tigecycline and levofloxacin (Levo), 0.125 and 4 mg/liter, respectively; tigecycline and ampicillin-sulbactam (AS), 0.125 and 48 mg/liter, respectively; and tigecycline and rifampin, 0.125 and 2 mg/liter, respectively.