Mandatory Credit: Photo by Anthony Harvey/Shutterstock (11674212v) A woman wearing a face covering in Brighton walks past the government's 'Coronavirus Tier 4 - Stay Home' publicity campaign poster as many parts of the UK could be added the highest level of COVID-19 restrictions on after mutated COVID-19 strains continue to spread around the country. Prime Minister, Boris Johnson refused to rule out a third national lockdown in the New Year. Covid restrictions, Brighton, UK - 30 Dec 2020