Case Studies in Veterinary Immunology presents basic immunological concepts in the context of actual cases seen in clinics. It is intended for veterinary medicine students, interns, residents, and veterinarians, and serves as a valuable supplement and companion to a variety of core immunology textbooks and courses. The book includes cases describing primary immune system defects, secondary immune system defects, and hypersensitivity and autoimmune disorders, as well as dysproteinemias and lymphoid neoplasia. Drawing on the successful approach of Geha’s Case Studies in Immunology, each representative case is preceded by a discussion of the principles underlying that specific immunological mechanism. The case itself includes the presenting complaint (signalment), physical examination findings, pertinent diagnostic laboratory data, diagnosis, and treatment options. In those instances in which a specific disorder occurs in both animals and humans, the differences and similarities in the immunological mechanisms and manifestations of the disease are explored. End of case questions highlight important concepts and serve as a review aid for students. Details on standard vaccines and vaccination schedules, as well as descriptions of the types of assays used for evaluation of the immune system, are included as appendices.