Russia's Sputnik V vaccine against Covid-19 is more than 90% effective, a representative of the health ministry said on Monday, citing data collated from vaccinations of the public rather than from an ongoing trial.
The comments followed a statement earlier on Monday by vaccine developers Pfizer Inc and BioNTech, who said their experimental Covid-19 vaccine was more than 90% effective.
"We are responsible for monitoring the effectiveness of the Sputnik V vaccine among citizens who have received it as part of the mass vaccination programme,"

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