As the Ebola epidemic in West Africa has spiraled out of control, affecting thousands of Liberians, Sierra Leonians, and Guineans, and threatening thousands more, the world’s reaction has been glacially, lethally slow. Only in the past few weeks have heads of state begun to take serious notice. To date, the virus has killed more than 2,600 people. This is a comparatively small number when measured against much more established diseases such as malaria, HIV/AIDS, influenza, and so on, but several factors about this outbreak have some of the world’s top health professionals gravely concerned