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Better water and sanitation lead to four-fold productivity

Published: Updated:

Some 650 million people, or one in 10 of the world's population, do not have access to safe water, putting them at risk of infectious diseases and premature death.

Dirty water and poor sanitation can cause severe diarrheal diseases in children, killing 900 under-fives a day across the world, according to United Nations estimates - or one child every two minutes.