Cells and organs of the immune system -- Innate immunity -- Immunogenicity and antigenicity -- Antigen-presenting molecules -- Antigen-presenting cells -- Surface interactions between T cells and antigen-presenting cells -- Intracellular signaling and T cell activation -- B cell activation and signaling -- Antibodies -- Antibody diversity -- Complement -- Pharocytosis and intracellular killing -- Antibodies and in vivo therapy -- Antibodies and in vitro research and diagnostic assays -- Immediate allergic reactions -- Autoimmunity -- Transplantation -- Antigen presentation for cell-mediated response -- Delayed-type hypersensitivity reactions -- Cytotoxic T cells -- Natural killer cells -- Factors that influence the immune response -- Cytokines and biological modifiers -- Vaccines in theory and practice -- Vaccine-preventable diseases -- Acquired immune deficiency syndrome -- Answers to assessment questions.