Pts.I. Introduction -- 1. Overview of the immune system -- 2. Cells and organs of the immune system -- Pts.II. Generation of B-cell and T-cell responses -- 3. Antigens -- 4. Antibodies: structure and function -- 5. Organization and expression of immunoglobulin genes -- 6. Antigen-antibody interactions: principles and applications -- 7. Major histocompatibility complex -- 8. Antigen processing and presentation -- 9. T-cell recepter -- T-cell maturation, activation, and differentiation -- 11. B-cell generation, activation, and differentiation -- Pts.III. Immune effector mechanisms -- 12. Cytokines -- 13. The complement system -- 14. Cell-mediated effector responses -- 15. Leukocyte activation and migration -- 16. Hypersensitive reactions -- Pts.IV. The immune system in health and disease -- 17. Infection and immunity -- 18. Vaccines -- 19. Aids and other immunodeficiencies -- 20. Autoimmunity -- 21. Transplantation immunology -- 22. Cancer and the immune system -- 23. Experimental systems -- Appendix I: CD antigens -- Appendix II: Cytokines