Foreword.

The 2014-2016 Ebola virus disease (Ebola) epidemic in West Africa required a massive international response by many partners to assist the affected countries and tested the world's readiness to respond to global health emergencies. The epidemic demonstrated the importance of improving readiness in at-risk countries and remaining prepared for Ebola and other health threats. The devastation caused by Ebola in Guinea, Liberia, and Sierra Leone is well recognized; what is less widely recognized is that in these countries more people probably died because of Ebola than from Ebola. The epidemic shut most health care systems and derailed programs to prevent and treat malaria, tuberculosis, vaccine-preventable diseases, and other conditions (1,2).