There is no approved vaccine available for Ebola.
Two potential drugs are being tested at Medicins Sans Frontieres facilities.
Brincidofovir - up to 140 consenting patients will take the tablets twice a week over a two-week period, and survival rates will be compared with before the trial. This research is led by the University of Oxford in the UK.
Favipiravir - is approved in Japan for treatment of the influenza virus and is being tested in Gueckedou, Guinea. The research is being led by the French National Institute of Health and Medical Research (Inserm).