Virus in the Congo war zone

Health workers, deployed in response to an Ebola outbreak, checking the temperature and providing hand sanitiser to motorcyclists passing through the Kanyaruchinya checkpoint at the northern end of Goma, Congo. — Arlette Bashizi/The New York Times The Kigonze camp for displaced people in Bunia. — Arlette Bashizi/The New York Times

THE deadly Ebola outbreak in eastern Congo is moving faster than efforts to contain it, raising fears about what might happen if it explodes in highly populated areas held by M23, the powerful rebel group that seized vast swaths of territory last year.

Ebola cases have already been reported in the rebel zone, including one infection in the city of Goma, the rebel headquarters.