Namibia has made great progress in the fight against malaria. For complete elimination, however, health officials need better data on how infected people move between communities to understand transmission dynamics. Ongoing Flowminder work led by Professor Andy Tatem, in collaboration with the National Vector Borne Disease Control Program, the Clinton Health Access Initiative (CHAI) and Mobile Telecommunications Limited (MTC) is helping achieve this through a combination of malaria case data, satellite imagery and anonymised mobile phone records.