Sputnik Light As Booster Dose After Sputnik V 80% Effective Against Omicron, Says Russia

Sputnik Light As Booster Dose After Sputnik V 80% Effective Against Omicron, Says Russia

source https://news.abplive.com/health/russia-says-sputnik-v-vaccine-effective-against-omicron-sputnik-light-80-effective-against-new-covid-variant-1500369