Russia's Sputnik V vaccine against COVID-19 is around 83 per cent effective against the Delta variant of coronavirus, Russian Direct Investment Fund (RDIF) said on Wednesday citing data collected by the health ministry. ...
Russian developers of the Sputnik V vaccine on Thursday said that their single-dose Sputnik Light vaccine demonstrated 79.4 per cent efficacy against the COVID-19 and it has proven effective against all new strains of coronavirus. ...