Researchers use cell phone data to track movement of about 15 million people . The study advises that on a very local scale , `` hot spots of transmission can be targeted by indoor residual spraying , vector habitat removal , insecticides , drug administration , and bed-net use . '' Score: 6 Many Nairobi residents carry the malaria parasite back with them after traveling elsewhere . A child dies every minute in Africa because of malaria .
Researchers use cell phone data to track movement of about 15 million people . Score: 6 Many Nairobi residents carry the malaria parasite back with them after traveling elsewhere . A child dies every minute in Africa because of malaria .