IL10 and infection: Third, T lymphocytes well known to play a pivotal role in induction and perpetuation of C. jejuni induced immunopathology in mice [18], [21], [25], [26], [27] were infiltrating the intestinal mucosa and lamina propria of gnotobiotic IL-10−/− mice following infection with knockout mutant NCTC11168::cj0268c to a far lesser extent as compared to the applied control strains.