Welcome to a new type of project to validate building footprints! To contribute, you must be on the newest app version (2.1.8). Please use the tutorial to learn how to contribute. In the Ouaka province in the Central African Republic, MSF teams provide consultations in hospitals and health centres, and support a network of community health workers. A better map of the region will help the teams to understand the exact situation in the area and will allow them to make rough population estimations.