NavGeneral InfoEmail Print Provider Facebook Data for Good Geography Sierra Leone (SLE) Time period covered 01/2020 - 12/2022 Series or system Facebook Disease Prevention Maps Data type Geospatial data: GPS coordinates (GIS) Keywords Social distancing measures Citation Contributors Facebook Suggested citation Facebook. Sierra Leone Coronavirus Disease Prevention Map: Movement Between Administrative Regions - Facebook Data for Good 2020-2022. GHDx Entry last modified on: Aug 24, 2023