For more than a decade now, the best-selling Philippine Textbook of Medical Parasitology has served as an invaluable tool for graduate and undergraduate students, as well as medical and paramedical professionals in the public health sector. This third edition, entitled Medical Parasitology in the Philippines, contains an updated version of the global, regional, and national status of parasitic diseases, with particular focus on the Philippines, as well as Southeast Asia and the Western Pacific Regions. In this latest edition, the life cycles developed by the United States Centers for Disease Control and Prevention are utilized, and as in the other earlier editions, Bench Aids developed by the World Health Organization are included for reference purposes. For the first time, relevant policies and guidelines from the Department of Health are listed for further guidance of the readers. This edition also includes new sections that address recent developments in the field and nationally relevant global interests such as neglected tropical diseases, preventive chemotherapy, emporiatrics, and laboratory biosafety.