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Interim analysis of COVID-19 vaccine effectiveness against ...

In late 2019, a novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes coronavirus disease 2019 (COVID-19), emerged. On 11 March 2020, the World Health Organization declared COVID-19 a pandemic. As of 23 October 2021, over 39 million cases and almost 5 million deaths were reported in the EU/EEA [7].

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  Syndrome, Respiratory, Severe, Acute, Asrs, Severe acute respiratory syndrome

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