The book is designed as a text to cover essential aspects of immunology in a style that makes the subject most exciting and interesting. Emphasis has been to create an understanding of the principles and applications of immunology. Explains basic concepts of immunology in a lucid and easy-to-comprehend language. Describes intricate antigen-antibody reactions and kinetics. Discusses sophisticated immunoassays including isotopic, non-isotopic and immunocytochemical techniques. Highlights application of antibodies in medicine and as biochemical reagents. Gives an update of vaccines currently in use and under development. Contains abundant illustrations, glossary of technical terms, bibliography, and a set of questions at the end of each chapter. The book will be of immense value to undergraduate and graduate students of biology, medicine, microbiology, pathology, pharmacy and veterinary science.