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Contact GWCBackground. Rapid control of cholera outbreaks is a significant challenge in overpopulated urban settings, and documented results on field interventions are scarce. During the 2017-2018 period, Kinshasa, the capital of Democratic Republic of the Congo, experienced a sharp increase in cholera cases that showed potential to quickly spread throughout the city. A novel targeted WASH (Water, Sanitation and Hygiene) strategy was implemented to quickly stem the cholera outbreak.