A woman wearing a face mask walks on the street on a foggy morning in London, as many parts of the UK are now in Tier 4 COVID-19 restrictions on December 28, 2020. The UK has recorded its highest daily rise in coronavirus cases since the pandemic began with 41,385 positive tests. Prime Minister Boris Johnson hasn't ruled out a national lockdown in the New Year. (Photo by Dinendra Haria/SOPA Images/Sipa USA)
