Covid-19 vaccines are estimated to have prevented the deaths of nearly 20 million people worldwide in the first year of the roll out, a new study finds.
Between December 8, 2020, the date of the first administered vaccine, and December 8, 2021, 19.8 million lives were saved, based on estimates of excess deaths from 185 countries and territories.
Almost two-thirds of the world's population has now received at least one dose since the first Covid-19 vaccine was administered outside of a clinical trial.
