Ebola reaches big city, raising worry about vaccine
The second-largest Ebola outbreak in history has spread to a major city in eastern Congo, as health experts worry whether the stock of an experimental vaccine will stand up to the demands of an epidemic.
Butembo, with more than 1 million residents, is now reporting cases of the deadly hemorrhagic fever. That complicates Ebola containment work already challenged by rebel attacks elsewhere.
Medecins Sans Frontieres said new cases are increasing quickly in the eastern suburbs. There are currently 471 Ebola cases, of which 423 are confirmed, including 225 confirmed deaths.