BUNIA, Congo - People set fire to an Ebola treatment center in a town at the heart of the outbreak in eastern Congo on Thursday after being stopped from retrieving the body of a local man, a witness and a senior police officer said, as fear and anger grow over a health crisis that doctors are struggling to contain.

Eastern Congo residents sew masks at home and pray that the disease will not reach them; an American doctor who volunteered for an aid organization has tested positive and will be…

The outbreak has alarmed experts because it was able to spread for weeks undetected across a densely populated area ravaged by widespread armed violence.