covid vaccine was 94.1% effective with no serious safety concerns.The FDA will decide on the emergency use authorizations (EUA)after the advisers make their recommendations.Moderna, which also plans to seek European approval, reported that its vaccine's efficacy was consistent across age, race, ethnicity and gender demographics as well as having 100% success in preventing severe cases of the disease that has killed nearly 1.5 million people worldwide."We believe that we have a vaccine that is very highly efficacious.