BIOS Instant Notes in Immunology, Third Edition, is the perfect text for undergraduates looking for a concise introduction to the subject, or a study guide to use before examinations. Each topic begins with a summary of essential facts-an ideal revision checklist-followed by a description of the subject that focuses on core information, with clear, simple diagrams that are easy for students to understand and recall in essays and exams. BIOS Instant Notes in Immunology, Third Edition, is fully up-to-date and covers: * Overview of the Immune System * Cells and Molecules of the Innate Immune System * The Adaptive Immune System * Antibodies * The Antibody Response * The T Cell Response -- Cell-Mediated Immunity * Regulation of the Immune Response * Immunity to Infection * Vaccination * Immunodeficiency -- when the Immune System Fails * Hypersensitivity -- when the Immune System Misbehaves * Autoimmunity and Autoimmune Diseases * Transplantation * Tumor Immunology * Gender and the Immune System * Aging and the Immune System (Immunosenescence) * Immunotherapy