Kenya, with eight million without access to propersanitation but a university filled with bright and eager minds to help solve the problem, was an ideal testing ground.
Cholera thrives in areas without clean water and propersanitation, and the United Nations has said 6 million people in Zimbabwe -- more than half the population -- have limited or no access to safe water and sanitation in rural and urban areas.
The war destroyed major water points and water systems, forcing millions of Liberians to go without access to clean and safe drinking water and propersanitation facilities.