As delegates met this week in Geneva to debate pandemic preparedness at the World Health Assembly, an Ebola crisis in the Democratic Republic of the Congo and Uganda was once again testing the world’s outbreak response architecture. On May 15, Congo formally declared a new Ebola epidemic in Ituri province, in the country’s east, after laboratory confirmation of multiple cases and dozens of suspected deaths. Spread into Uganda was confirmed soon afterward. Two days later, the director-general of