Future Tech: Doctor on-Call? Cell-Phone Cameras Can Diagnose Disease

Many regions of the developing world exist in a strange technological limbo. Places that are well served by advanced cellular phone networks may lack the modern medical facilities necessary to diagnose and treat serious illness. As a result, a remote village in, say, South Africa—a region hard hit by malaria, tuberculosis, and HIV/AIDS—might be able to contact top medical experts and yet have no way to apply their knowledge.