This book provides a comprehensive overview of the different water-associated infectious diseases and their linked pathogens with plausible strategies for their mitigation. Although, we are in the era of 21st century having most of the advanced technologies at hand, yet water-associated infectious diseases are the major contributors towards the worldwide morbidity and mortality. The book also focuses on the various implementation strategies of sustainable hygienic conditions, discusses the robust, and reliable policies and strategies on a global aspect to provide unprivileged people access to the basic sanitation, hygiene and water. In addition, the book discusses the possible indirect effect of global warming on the spread of infectious diseases through the distribution of associated vectors.