title: Immunomodulating effects of microorganisms and their products on the immune response mechanisms.
mesh_terms: D001419:Bacteria / Q000276:immunology*; D001424:Bacterial Infections / Q000276:immunology*; D006801:Humans; D007109:Immunity; D014777:Virus Diseases / Q000145:classification / Q000276:immunology*; D014780:Viruses / Q000276:immunology*