Water And Sanitation Health works with villages to build appropriate and sustainable water & sanitation systems. According to the World Health Organization, more than 3.4 million people die each year from water, sanitation, and hygiene-related causes. Nearly all deaths, 99 percent, occur in the developing world. The lack of clean potable water causes countless gastro-intestinal sicknesses (Cholera, Dysentery, Acute Diarrhoeal Illness, etc), which afflicts mostly children. Water and Sanitation Health works to combat this problem.