Building on the strengths of the first edition, the newly titled and expanded second edition remains a concise introduction to the fundamentals of immunology, with an expert synthesis of basic and clinical information. Augmented by colour illustrations, and with increased emphasis on the molecular and genetic underoinnings of cellular phenomena, Textbook of Immunology covers the physiology of the immune system, disease entities related to immune system dysfunction, and the underlying pathophysiologic mechanisms of dysfunction. In response to advancing knowledge that influences the approach to presenting basic immunology, new chapters have been added on cytokines; host defense (non-specific immunity and specific immune responses); the aging immune system; and the pathophysiology, diagnosis, prevention, and therapy of AIDS. This book keeps pace with the explosion of information and data in immunology, and adeptly refines, organizes, and presents this body of knowledge to serve as a succinct introduction to modern immunologic concepts for medical students, and as an update and refresher in the basics for researchers and clinicians.