Fig. 2

Colonization patterns after inoculation of CIECs with three different C. jejuni strains. Relative adhesion and invasion (a) and invasion indices (b) after inoculation of CIECs with 106 CFU/ml of one of the three different C. jejuni strains (11168, Lior6, or 0097). The results are presented as the percentage of CFU of C. jejuni in the inoculum that adhered or were internalized (relative adhesion and invasion) and the percentage of total CFU of cell-associated C. jejuni that were internalized (invasion index). The presented data are the means of three independent experiments with pools of different donor chickens performed in triplicate. Error bars indicate the standard error of the mean (SEM). Letters indicate significant differences between strains (p < 0.05; one-way analysis of variance with Tukey’s HSD All-Pairwise Comparisons Test)