The GRID3 Mapping for Health team at Flowminder launched a country-wide phone survey in the Democratic Republic of the Congo (DRC). The GRID3 Mapping for Health project in DRC aims to strengthen the effectiveness and equity of the country’s vaccination interventions; data from the phone survey will inform the production of mobility estimates (based on Call Detail Records, CDR) used to design these interventions. Der Beitrag Country-wide phone survey in DRC to strengthen mobility estimat...