Figure 3.
Efficacy of preventing C. jejuni colonization in chickens by two exposures to a low dose of the ΔahpC mutant. (A) Levels of chicken colonization of the total C. jejuni including the wild type and the ΔahpC mutant. (B) Colonization levels of the ΔahpC mutant. Day-old chicks were administered with a low dose (5 × 106 CFU/bird) of the ΔahpC mutant on days three and seven and challenged with the wild-type C. jejuni on day 10. Median values are indicated with lines. Statistical significance was calculated with two-way ANOVA with Sidak’s multiple comparison test (****: p < 0.0001). The dotted line is the detection limit.