After the first Ebola death in Uganda in years, a senior health official says authorities in the African nation are "in full control of the situation."

Test results on the sick people are pending, and a top WHO official said the outbreak response is proceeding rapidly.

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.