Russia's Sputnik V vaccine 91.6% effective in late-stage trial
Russia is also conducting a small-scale clinical trial of a one-dose version of the vaccine, which developers expect to have an efficacy rate of 73% to 85%.
A nurse prepares Russia's "Sputnik-V" vaccine against the coronavirus disease (COVID-19) for inoculation at a clinic in Tver, Russia October 12, 2020.(photo credit: REUTERS/TATYANA MAKEYEVA/FILE PHOTO)ByREUTERS
