Militia threat hampers Ebola fight in Congo

Militia violence in Democratic Republic of Congo has prevented aid workers from reaching some potential cases in an outbreak of Ebola that has so far killed 44 people, .

the World Health Organization said at least 1,500 people have been potentially exposed to the deadly virus in North Kivu province

however the violence means officials cannot be sure if they have identified all the chains by which it is spreading in the east of the vast country.

Congo has experienced 10 Ebola outbreaks since the virus was discovered on the Ebola River in 1976, and it has killed over 900 people since then.