In the eastern Congolese town of Rwampara, silence hung heavy over the general hospital as healthcare workers in full protective suits carried bodies into disinfected coffins.

KINSHASA — At least 131 deaths and more than 513 suspected cases have been reported in the Democratic Republic of Congo as an international effort is underway...

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