Uganda has begun a clinical trial of a vaccine against the Sudan strain of Ebola following an outbreak that has killed one nurse in the east African country.

Uganda has launched a trial of a vaccine against the Sudan strain of the Ebola virus, following an outbreak in the country with three confirmed cases.The first patient, a 32-year-old male nurse, died last week.

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.