A test program starts in Congo. It is about a vaccine against the Ebola-Virus. The first helpers receive the vaccine in the city of Bunia. They work with sick people. 20000 people take part in the study.
The vaccine helps against one form of Ebola. Experts check the effect now. The study takes up to 12 months.
Ebola is a dangerous illness. It brings fever and pain. More than 3600 people die already. It is the worst outbreak in the land.