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Cholera has been eliminated as a public health problem in high-income countries that have implemented sanitation system separating t
Purpose. The 2014 outbreak of Ebola virus disease (EVD) in West Africa was the largest in history.
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.