A Moscow health care worker administers a shot of Russia’s Sputnik V coronavirus vaccine during clinical trials in September. President Vladimir Putin ordered the nation’s health authorities to begin mass vaccinations next week.

FILE – In this Sept. 15, 2020, file photo, a Russian medical worker administers a shot of Russia’s experimental Sputnik V coronavirus vaccine in Moscow, Russia. Developers of Sputnik V, Russia’s COVID-19 vaccine, announced Wednesday that the jab appeared to be 92% effective in advanced trials, in a statement that comes just two days after a similar one from Pfizer Inc. and indicates Moscow’s eagerness to get ahead in the worldwide race for a successful coronavirus vaccine. (AP Photo/Alexander Zemlianichenko Jr, File)