PARIS, France (AFP) — Covid vaccines prevented nearly 20 million deaths in the first year after they were introduced, according to the first large modelling study on the topic released Friday. The study, published in The Lancet Infectious Diseases, is based on data from 185 countries and territories collected from December 8, 2020 to December 8, 2021. It is the first attempt to estimate the number of deaths prevented directly and indirectly as a result […]