Momoh, 33, collects plastic bottles from the polluted beach of Kroo Bay, a poor slum settlement of 5,500 people in Freetown, Sierra Leone. In 2012, Sierra Leone suffered through one of its worst outbreaks of cholera, a waterborne disease that infects the intestine and is transmitted through contaminated water and food. The disease has ravaged 12 of the country's 13 districts.
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