The coronavirus R rate has dropped below one for the first time since July across the UK.
The R value, or reproduction number, of the virus is now estimated to be between 0.7 and 0.9 across the country.
In a sign that lockdown restrictions are having an impact and the epidemic is shrinking, scientists advising the Government gave their most optimistic outlook for the R number since cases fell last summer.
It comes as new data from the Office for National Statistics shows a drop in infections, with around one in 80 people in private households in England having Covid-19 between January 31 and February 6, the equivalent of 695,400 people.
This is down from around one in 65 people for the period January 24 to 30.
The data is based on swab results from people with and without symptoms.
On February 9, the latest date for which figures are available, the number of patients in hospital with Covid-19 in the UK stood at 25,621.
This is down 35% from a peak of 39,236 on January 18, and is the lowest number since December 29.
But while scientists advising the Government believe cases of Covid-19 are dropping at a decent pace across England, they have warned that infection levels remain high.
Prime Minister Boris Johnson is facing calls from Tory sceptics to ease the lockdown once the pressure on the NHS eases and deaths drop.
But scientists argue that case numbers are still too high for a significant loosening of restrictions.
They believe that only by driving case numbers to much lower levels can NHS Test and Trace and surge testing work properly.
Find your nearest vaccination centre by entering your postcode below
With low case numbers, clusters of cases can be identified more easily and new mutations to the virus can be picked up, one Government scientific adviser said.
They argued that loosening restrictions when cases are low means there is less chance of R going above one, which leads to exponential growth of the virus, and this creates a quicker path back to normal life.
The current halving time of the virus (the time it takes to the number of new infections to halve in size) is thought to be at around 14 to 17 days.
Scientific advisers believe that if this continues, aided by the rollout of vaccines, then low case numbers can be achieved in the next two to three months.
The regional breakdown for the R rate
UK - 0.7 to 0.9
England - 0.7 to 0.9
North West- 0.7 to 0.9
East of England - 0.7 to 0.9
London - 0.6 to 0.8
Midlands - 0.7 to 0.9
North East and Yorkshire - 0.8 to 0.9
South East - 0.7 to 0.8
South West - 0.7 to 0.9
