The R number in the UK is estimated to have gone up to between 1.1 and 1.3, according to the SAGE group of government advisers.
The growth rate range of COVID-19 is estimated to be between +1% to +6%.
The figure is highest in the East of England and in London, with an R value of 1.2 to 1.5. This means that every 10 people infected will infect between 12 and 15 further people.
The R value in England as a whole is 1.1-1.4, and is lowest in the North East and Yorkshire, and in the North West (0.9-11).
Last week, the UK figure was put at between 1.1 and 1.2 with a growth rate of between 1% and 4%.
When England emerged from November’s lockdown the number was 0