This article is 3 years old
Sputnik V shot around 83pct effective against Delta variant
Russia's Sputnik V vaccine against Covid-19 is around 83 percent effective against the Delta variant of coronavirus, lower than previously thought, Health Minister Mikhail Murashko said on Wednesday.
Authorities blamed a surge in coronavirus cases in June and July on the more contagious Delta variant and the population's reluctance...
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