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The COVID-19 pandemic is a public health crisis of unprecedented proportions. Despite unparalleled rates of vaccination and mass testing in certain parts of the world, the virus rages on. Since SARS-CoV-2, the virus that causes COVID-19, was first isolated in Wuhan, China, on 7 January 2020, more than 243 million cases and 4·9 million deaths have been reported worldwide at the time of writing.1
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Batista et al. (2021) studied this question.
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