Access to safe drinking water and sanitation is essential for protection and promotion of health. It is a basic human right and a key component of effective public health delivery system. "Disease Burden due to Inadequate Water & Sanitation Facilities in India", is a study conducted by the Sulabh International Academy of Environmental Sanitation (SIAES) and published in 2008 with support from World Health Organization (WHO). The study documents the need and impact of provision of safe water and sanitary excreta disposal facilities towards preventing infectious diseases like diarrhoea, cholera, typhoid, hepatitis etc.