ABSTRACT
Environmental health engineering concerns engineering methods for the improvement of the health of the population. Environmental health engineering seeks to modify the human environment in such a way to prevent or reduce the transmission of infectious diseases. An infectious disease is one which can be transmitted from one person to another or, sometimes, to or from an animal. A water-related disease is one which is related somehow to water or to impurities in water. The chapter discusses the infectious water-related diseases from those related to some chemical property of the water. A water-based disease is one whose pathogen spends a part of its life cycle in a water snail or other aquatic animal. Potentially water-borne diseases include the classical infections, notably cholera and typhoid, but also include a wide range of other diseases, such as infectious hepatitis, diarrhoeas and dysenteries. The complete eradication of Guinea worm disease has been adopted as a goal by the World Health Organization.
