Antimicrobial susceptibility profiles of Campylobacter isolates (n = 801). Isolates from plant A (n = 439; open bars) and plant B (n = 362; black bars) were tested for antimicrobial susceptibility using agar dilution. A. The frequency of MICs obtained for ciprofloxacin. The arrow denotes the breakpoint of ≥ 4 μg/ml. B. The frequency of MICs obtained for erythromycin. The arrow denotes the breakpoint of ≥ 32 μg/ml.
Lutgen et al. BMC Microbiology 2009 9:203 doi:10.1186/1471-2180-9-203