BBC Uganda has launched a trial of a vaccine against the Sudan strain of the Ebola virus, following an outbreak in the country that has killed one person and infected two others.
The first patient, a 32-year-old male nurse, died last week.
On Monday, the initial participant in the trial, who is currently in isolation, received a dose of the vaccine, which was developed by the International Aids Vaccine Initiative, a global non-profit organisation.
There is currently no approved vaccine for the Sudan strain of Ebola. One does exist, however, for the Zaire strain, which has been prevalent in the past in the Democratic Republic of Congo.