Seungman Cha

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In 2007, readers of the BMJ (British Medical Journal) chose “sanitation” as the most important medical milestone since 1840. It reminded us of the importance of safe water and sanitation for people’s lives. Still, improving access to sanitation remained an unfinished agenda in the global community. Globally, 2.4 billion people still do not have access to improved sanitation facilities in 2015, and of these, around 1 billion people have to practice open defecation.