The deadly nature of the Theileria parasite and the exquisite cunning, displayed when survival strategies are called for, inspire both awe and fascination, if not admiration, among field and laboratory scientists. Its negative impact on livestock production with resulting economical losses, however, undoubtedly affects the quality of human life. This book will provide detailed insight into the state-of-the art research, ongoing in different laboratories, aimed at unravelling the intricacies and molecular basis of the parasite as well as host-parasite interactions, that govern the immune responses and pathogenesis of Theileriosis. Theileria, volume three of "World Class Parasites", is written for researchers, students and scholars who enjoy reading research that has a major impact on human health, or agricultural productivity, and against which we have no satisfactory defense. It is intended to supplement more formal texts that cover taxonomy, life cycles, morphology, vector distribution, symptoms and treatment. It integrates vector, pathogen and host biology and celebrates the diversity of approach that comprises modern parasitological research.