Figure 2: Growth responses of C. jejuni 81-176 to anti-CmeC serum and control serum (pre immune serum). The log-phase culture of 81-176 was diluted to approximately 2 x 106 cfu/ml in MH broth containing sublethal concentrations of cholic acid (2 mg/ml). Anti-CmeC and control sera were added to cells with 1:10 dilution and cells were incubated for 6 hours at 42°C under microaerophilic conditions. Samples were diluted in MH broth and plated on MH agar plates to determine bacterial viability. Each bar represents the mean value obtained from triplicate assays.