Russia's Sputnik V vaccine 91.6pct effective in the late-stage trial

Russia's Sputnik V vaccine was 91.6 percent effective in preventing people from developing Covid-19, according to peer-reviewed results from its late-stage clinical trial published in international medical journal The Lancet on Tuesday.

Scientists said the Phase III trial results meant the world had another effective weapon to fight the deadly pandemic and justified to some extent Moscow's decision to roll out the vaccine before final data had been released...