The textbook that has defined the field of immunology since 1984 is now in its thoroughly revised and updated Sixth Edition. This comprehensive, up-to-date text will be of interest to graduate students, post-doctoral fellows, basic and clinical immunologists, microbiologists and infectious disease physicians, and any physician treating diseases in which immunologic mechanisms play a role. This edition features expanded coverage of regulatory T cells, innate immunity, and dendritic cells. Additional chapters on cytokines are also included in this title. A companion website offers the fully searchable text, plus all illustrations in full color and comprehensive lists of references.