This is the latest edition of the standard in comparative pathology, used by practitioners and students alike as a comprehensive yet understandable resource. Rigorously revised, the sixth edition introduces a wealth of new information on immunopathology and pathogenesis, viral diseases, environmental toxins, parasitic diseases, and nutritional problems in domestic and captive animals. Approximately half of the information presented is new, as are about 200 illustrations. Plus, the text's presentation is improved, with a larger format, and a more reader-friendly design to appeal to students.