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Purpose. The 2014 outbreak of Ebola virus disease (EVD) in West Africa was the largest in history.
Fragility has become the reality in several countries of the Middle East and North Africa.
After a series of earthquakes devastated Port-au-Prince, Haiti, on 12 January 2010, safe excreta disposal became an urgent priority.
In peri-urban Monrovia, contaminated hand-dug wells were contributing to cholera outbreaks.