The role of type I or III IFN in other enteric bacterial infections [e.g., enteropathogenic (EPEC) and enterohemorrhagic (EHEC) Escherichia coli, Citrobacter rodentium, Campylobacter jejuni, or Yersinia enterocolitica] has not been extensively addressed in in vivo infection models. This evidence concerns the gene IFNA1 and infection.