The defining reference work in immunology today is now available in an entirely new text! This edition places greater emphasis on molecular mechanisms underlying cellular function and physiology, and includes outstanding new chapters on neuroimmunology and immunotherapy...completely updated coverage of immune suppression and regulatory T cells...and new and expanded chapters on lymphocytes, the immunology of aging, autoimmunity, and more. A free CD-ROM provides one-click access to all of the content and illustrations from the text--plus Internet links to PubMed and 50 other sites. "Nothing else competes with it."--JAMA, review of the previous edition.