The coronavirus reproduction number, or R value, in England is between 0.8 and 1.1, according to the latest Government figures.
Last week, the figure was between 0.8 and 1.
R represents the average number of people each Covid-19 positive person goes on to infect.
When the figure is above 1, an outbreak can grow exponentially, but when it is below 1, it means the epidemic is shrinking.
An R number between between 0.8 and 1.1 means that, on average, every 10 people infected will infect between 8 and 11 other people.
The figures for R and the growth rate are provided by the Scientific Advisory Group for Emergencies (Sage).
The growth rate, which estimates how quickly the number of infections is changing day by day, is between minus 4% and minus 1% for England.
It means the number of new infections is shrinking by between 1% and 4% every day.
Sage has said that R estimates now span 1 for England and some NHS England regions.
However it added these estimates do not necessarily mean R is definitively above 1 and that the epidemic is increasing, just that the uncertainty means it cannot be ruled out.