For many people, the 2014-2016 Ebola outbreak was the first time they had heard of Ebola virus disease. It was not the first outbreak of the disease, but it was the largest, with approximately 28,500 suspected cases. Now, in 2016, the epidemic has ended1. However, it is only a matter of time before Ebola emerges again. If a vaccine were to be developed and widely distributed before the next outbreak, it could save many lives.