New measures taken to combat an Ebola outbreak in the eastern Democratic Republic of Congo have had a "positive impact", but the virus remains dangerous and unpredictable, the World Health Organization and United Nations said Thursday.
Since the outbreak began in August, 191 people have died, about half of them in Beni, a city of 800,000 people at the epicentre of the outbreak, the WHO said in a statement with the UN's Department of Peacekeeping.