Uganda has begun a trial vaccination programme for the strain of Ebola viral infection that is behind Sudan's latest outbreak, according to the World Health Organization (WHO), while the number of confirmed cases has risen to three.

Ugandan officials are preparing to deploy a trial vaccine as part of efforts to stem an outbreak of Ebola in the capital, Kampala

This is a critical achievement toward better pandemic preparedness and saving lives when outbreaks occur,” said Dr. Tedros Adhanom Ghebreyesus, WHO Director-General.