coronavirus will look from Boxing Day. Earlier at a Downing Street press conference, Health Secretary Matt Hancock announced changes to the tiering system which will come into effect at one minute past midnight on December 26.Millions more people across the south east and east of England are to be moved into the toughest Tier 4 restrictions from Boxing Day as the number of Covid-19 cases spread.Mr Hancock has also said that two cases of another new strain of Covid-19 linked to South Africa have been identified in the UK.More detail was given at the briefing on the current situation with the coronavirus pandemic.Get the latest updates from across Greater Manchester direct to your inbox with the free MEN newsletterYou can sign up very simply.