Broth Microdilution Susceptibility Testing of Campylobacter jejuni and the Determination of Quality Control Ranges for Fourteen Antimicrobial Agents

Quality control ranges were developed for broth microdilution testing of Campylobacter jejuni ATCC 33560 against 14 antimicrobials. Cation-adjusted Mueller-Hinton broth containing 2.5% laked horse blood was the preferred medium, with incubation in a microaerobic atmosphere of 10% CO2, 5% O2, and 85% N2 at 36°C for 48 h or 42°C for 24 h.