This book is the biography of a Chinese disease. Born in antiquity and reaching maturity during the epidemics that swept China during the seventeenth-century collapse of the Ming dynasty, the ancient notion of wenbing "Warm diseases" continued to play a role even in the response of Traditional Chinese Medicine to the outbreak of SARS in 2002-3. By following wenbing from its birth to maturity and even life in modern times this book approaches the history of Chinese medicine from a new angle. It explores the possibility of replacing older narratives that stress progress and linear development with accounts that pay attention to geographic, intellectual, and cultural diversity. By doing so it integrates the history of Chinese medicine into broader historical studies in a way that has not so far been attempted, and addresses the concerns of a readership much wider than that of Chinese medicine specialists.