title: The immune system. Second of two parts.
authors.affiliation: Department of Immunology, Windeyer Institute of Medical Sciences, University College London.
authors.forename: P J
authors.initials: PJ
authors.lastname: Delves
authors.forename: I M
authors.initials: IM
authors.lastname: Roitt
mesh_terms: D000818:Animals; D030801:Animals, Genetically Modified / Q000276:immunology; D000906:Antibodies / Q000276:immunology; D000917:Antibody Formation; D006801:Humans; D007107:Immune System / Q000276:immunology*; D007109:Immunity / Q000502:physiology*; D007111:Immunity, Cellular; D008214:Lymphocytes / Q000276:immunology*; D008221:Lymphoid Tissue / Q000276:immunology; D051379:Mice; D018345:Mice, Knockout / Q000276:immunology
chemical_list: D000906:Antibodies