IL22 and infection: IFN‐y is key to fight the infection, and its expression has been reported to be shared by conventional NK cells as well as ILC3s during Salmonella infection in mice with T‐bet+ CCR6− RORγt+ ILC3s being the strongest IFN‐y producers.29 In addition, intestinal IL‐22 expression triggered by intestinal epithelial cell‐derived RA affects antimicrobial peptide expression and bacterial load in S. typhimurium infection.22