Italy debates its ‘mix-and-match’ plan to finish vaccinating AstraZeneca first-dose recipients. जून 16, 2021 byप्रगतिवादी मंच एक टिप्पणी भेजें source https://www.nytimes.com/2021/06/16/world/italy-debates-its-mix-and-match-plan-to-finish-vaccinating-astrazeneca-first-dose-recipients.html
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