The hundreds of scientists from CDC and their colleagues from USAID, DOD and other government agencies and NGOs who responded to the Ebola outbreak did incredible work to help contain the disease after it wasn't recognized locally for months and spread from one sick child in Guinea to other villages, then into Sierra Leone and Liberia. It accelerated in hospitals, killing doctors and nurses, and spread in cities, killing entire families, neighbors and friends. Before it was over, more than 11,000 lives were lost. We are fortunate Ebola never took root in the U.S., though we did not escape unscathed. The epidemic in West Africa undermined decades of U.S. investments to bring stability to a war-torn region and mitigate the risk of terrorist groups gaining control.