Instant Notes \"titles focus on core information and are designed to help undergraduate students come to grips with a subject quickly and easily. This new edition has been amended throughout, new sections have been added on aging and gender and the immune system, and diagrams have been redrawn for improved clarity and consistency of style. \"Instant Notes in Immunology,\" Second Edition provides concise yet comprehensive coverage of immunology at an undergraduate level, providing easy access to the core information in the field. The book covers all important areas in immunology in a format which is ideal for learning and rapid revision. Also features MCQs and answers which test knowledge and understanding.