In 2014 and 2015 the world witnessed the worst global epidemic of Ebola virus disease in history. More than 25,000 people were infected and more than 11,000 people died from this deadly infectious viral disease for which no antiviral drugs or vaccines are currently approved. Health care workers from around the world conver gedin the West African epicenter of the outbreak, to do everything and anything possible to care for the sick and dying, and to stop the of spread of disease. At the same time, national regulatory authorities, health policy‐makers, and vaccine manufacturers scrambled to develop a vaccine that might be effective in preventing individuals from contracting the infection. This talk describes the journey to ward development of one very promising vaccine candidate, which, based on early results from a clinical study in Guinea, was shown to be 100% effective. Please RSVP by October 17 via email piasany@verizonnet or by phone at (212) 686-4164