Measuring the safety, efficacy of a vaccine against Ebola virus disease

The 2014–2015 Ebola epidemic affected several countries in West Africa, leading to the death of more than 11,000 people. Although this epidemic of Ebolavirus disease is over, there is no knowing if, when or where another may strike. It is therefore more important than ever to find a reliable vaccine against this deadly disease. Research on vaccines, which was ongoing during the epidemic in West Africa, is now yielding promising results.