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How COVID vaccines shaped 2021 in eight powerful charts
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How COVID vaccines shaped 2021 in eight powerful charts

Smriti Mallapaty, Ewen Callaway, Max Kozlov, Heidi Ledford, John Pickrell & Richard Van Noorden A mobile vaccination team at work during a house call in a remote region of Turkey.Credit: Chris McGrath/Getty A year ago, vaccine drives against COVID-19 were just beginning. Now, more than 4.4 billion people have had one or more dose —...