title: Keystone symposium. Mucosal immunity: new strategies for protection against viral and bacterial pathogens. Keystone, Colorado, January 16-23, 1995. Abstracts.
mesh_terms: D000818:Animals; D001419:Bacteria / Q000472:pathogenicity; D006801:Humans; D007109:Immunity; D009092:Mucous Membrane / Q000166:cytology / Q000276:immunology / Q000382:microbiology; D014780:Viruses / Q000472:pathogenicity