The thoroughly updated Sixth Edition of this classic two-volume work continues to provide a comprehensive overview of immunology, its clinical applications, immunopathology, and allergy. A text revised and updated throughout facilitates an understanding of the host mechanisms in immunologic diseases. The strength of this text is its clinically oriented emphasis on immunologic diseases and differential approach to symptoms and syndromes. This edition features an increased clinical coverage and is an essential reference for all clinical immunologists, rheumatologists, and allergists.