Ebola is endemic in the Congo but previously was confined to remote places where it could be rather easily snuffed out. Now it has reached a major city. Cross your fingers that it can be stopped.
Update June 28, 2018: Rapid response and deployment of a new vaccine contained the outbreak, as reported in the New York Times. More than 3,200 people — contacts and health providers — were vaccinated, and none fell ill. As reported in the article, 29 died out of 53 confirmed or probable Ebola cases. This outbreak began in a remote village, presumably from bush meat or other contact with infected wild animals.