Congo has begun vaccinating front-line health workers in Bunia and Mongbwalu against Ebola. The move aims to protect exposed responders while scientists assess whether Ervebo works against the Bundibugyo strain.

Congo on Saturday began vaccinating healthcare staff against Ebola in Bunia, the epicenter of the fastest-growing outbreak of the disease in history as they are "particularly exposed and deeply i

The campaign in Ituri and North Kivu is expected to cover 20,000 front-line workers over a period of six to nine months.