Covid cases have continued to rise as new figures show around 1 in 65 people tested positive for the virus in England last week.
The latest ONS weekly infection survey estimated that 856,200 people in the community population had Covid-19 in the week up to July 24.
This is the highest level since the week to January 30.
It marks an increase on the week before when 741,700 people - or 1 in 75 - had the virus.
But the report offered some hope, as it said "there are possible signs that the rate of increase may have slowed" in England.
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The number of people testing positive has risen in every part of England apart from the East of England and the South West where the trend is "uncertain".
The North East saw the highest rates with one in 30 people testing positive, followed by the North West with around one in 45.
Eastern England and the South West had the lowest proportion of case, with around one in 100 people infected.
It comes after Boris Johnson pressed ahead with axing remaining lockdown restrictions in England on July 19, despite concern about continued prevalence of the virus.
The PM has repeatedly urged the public to be cautious on resuming their freedoms and warned that the pandemic is not over.
Separate daily figures have revealed a seven-day fall in cases, although infections have started to rise again in recent days.
The ONS estimates infection numbers in the community beyond those who have been tested - aiming to give a fuller picture of the state of the virus.
Covid cases also rose in Wales and Northern Ireland over the same period, but fell in Scotland, according to the figures.
In Wales, around one in 160 people are estimated to have had Covid-19 up to July 24 - an increase from one in 210 in the previous week, and the highest level since the week to February 12.
In Northern Ireland, the latest estimate is around one in 65 people, up from one in 170 and the highest level since the week to January 30.
For Scotland, around one in 110 people had Covid-19 in the week to July 24, down from one in 80 in the previous week.
