Russia repeats 91.4% efficacy rate in new COVID vaccine data - developers
Twenty of the infected participants who received a placebo suffered severe symptoms of COVID-19, the statement said.
A medic of the regional hospital receives Russia's "Sputnik V" vaccine shot against the coronavirus disease (COVID-19) in Tver, Russia October 12, 2020. (photo credit: REUTERS/TATYANA MAKEYEVA/FILE PHOTO)ByREUTERSUpdated: