- Russia’s COVID-19 Vaccine Reported To Be 92% Effective : Coronavirus UpdatesNPR
- Russia’s Sputnik V vaccine is 91.6% effective against symptomatic Covid-19, interim trial results suggestCNN
- Live updates: Russian vaccine over 91% effective against coronavirus, peer-reviewed test results showThe Washington Post
- Russia coronavirus vaccine 91.6% effective: Lancet – Business InsiderBusiness Insider
- Russia’s Sputnik V vaccine 91.6% effective in late-stage trialYahoo News
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