Russia insists Sputnik V Covid-19 vaccine is '92% effective' days after Pfizer results

A medic at a Russian regional hospital in Tver receives the "Sputnik-V" vaccine [Image: Reuters])

Data suggests that Russia's coronavirus vaccine is 92% effective, according to the country's sovereign wealth fund.

The claims about the Sputnik V vaccine comes days after pharmaceutical giant Pfizer and biotech firm BioNTech released interim results suggesting their vaccine is more than 90% effective at preventing Covid-19.