The One Health concept of combined veterinary and human health continues to gain momentum, but the supporting literature is sparse. In this book, the origins of the concept are examined, and practical content on methodological tools, data gathering, monitoring techniques, study designs, and mathematical models is included. Zoonotic diseases, with discussions of diseases of wildlife, farm animals, domestic pets and humans, and real-world issues such as sanitation, economics, food security and evaluating the success of vaccination programmes, are covered in detail. Discussing how to put policy into practice, and with case studies throughout, this book combines research and practice in one broad-ranging volume. It is intended for all those working for the health of communities in research and implementation. The book will benefit students in human and veterinary medicine, health and environmental sciences and biology to ground them in modern inter- and transdisciplinary methods. The book should also serve professionals in academia, technical authorities and government with its numerous practical examples and case studies on disease control, service provision, conservation and academic teaching.