The material presented in this book identifies patterns and trends in the abundance and distribution of disease phenomena in the marine environment. These patterns have gone unrecognized and undetected in the past because the literature in this field is so widely scattered. The text is both interdisciplinary and synthetic. Studies in this volume unequivocally link marine diseases to global climate change aiming to change our perspective on the major controls over the population dynamics of marine organisms. Papers in this volume identify the intimate connection between public health and environmental health for marine-borne diseases such as cholera and human enteroviruses.