“…It is only known that some components of the autochthonous g.i. microbiota can stimulate non-specific immunity, either systemically [59,[79][80][81][82] or locally [18,[81][82][83][84][85][86][87][88] or both systemically and locally [82,89,90]. Autochthonous gut bacteria can also stimulate specific immunity [91][92][93][94][95] anO induce specific immunological tolerance [60,92,94,[96][97][98].…”