From Kerry A. Dolan / Forbes: By the time sick kids reach a clinic, it can be too late. Through home visits, community health workers with the nonprofit Muso in Mali are spotting early signs of malaria, pneumonia, diarrheal disease, and malnutrition and providing treatment to sick kids right away. The approach shortens the time between the first signs of illness and treatment, saving lives in one of the countries with the highest rates of child mortality.