The EU digital COVID certificate made travel easier in Europe during the pandemic by providing a proof of vaccination, negative test or recovery from COVID-19 that is recognised by all 27 EU member ...
With U.S. Covid-19 cases at very high levels and new vaccines still several weeks away, we asked experts for their advice on when and where to wear a mask. By Ceylan Yeğinsu and Dani Blum It is the ...
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