The daily growth in Britain is -6% to -3% with current British lockdown measures which I believe are stronger than average worldwide. Certainly stronger than pre-Christmas 2020 British measures.
In England (Wales Scotland and Northern Ireland have similar but different rules because of devolution):
* All schools are closed bar vulnerable children and children of key workers.
* All non-essential retail, hospitality and leisure is closed.
* Everyone should stay at home except for allowed exceptions like work, medical appointments or local exercise.
* You can meet one person from another household for local exercise outside if you stay 2 metres apart.
Variant B1.1.7 surged in Kent (South East England) in December 2020 despite "UK Tier 4" lockdown. The transmission increasing by 70% from the initial variant overwhelmed the reduction from reduced social mingling given that rule set.
South East England was in tier 4 lockdown in December but I don't think there was much compliance. This was fairly typical: https://youtu.be/K_tQCW_abjo?t=1993
In England (Wales Scotland and Northern Ireland have similar but different rules because of devolution): * All schools are closed bar vulnerable children and children of key workers. * All non-essential retail, hospitality and leisure is closed. * Everyone should stay at home except for allowed exceptions like work, medical appointments or local exercise. * You can meet one person from another household for local exercise outside if you stay 2 metres apart.
Variant B1.1.7 surged in Kent (South East England) in December 2020 despite "UK Tier 4" lockdown. The transmission increasing by 70% from the initial variant overwhelmed the reduction from reduced social mingling given that rule set.