The British prime minister is expected to announce the ending of social-distancing rules — which had been slated for June 21st — will be delayed for four weeks to July 19th, with the BBC reporting early on Monday the decision had been signed off by senior ministers.
The move follows warnings from scientists that the rapid spread of the Delta variant first identified in India risks a “substantial” third wave if it is allowed to spread unchecked.
Mr Johnson is expected to appeal to the public to show patience, with one last push to ensure that when controls do finally end it is “irreversible”.
However, it comes as a huge setback to many businesses — particularly in the battered hospitality sector — which had pinned their hopes on a full summer reopening to recoup some of the losses of the past year.
There was deep frustration among lockdown sceptics on the Conservative benches who said there was no reason not to end the restrictions as those most at risk of death or serious illness are now fully vaccinated.
He warned that if the unlocking did not go ahead as planned, restrictions could carry on through the autumn and into the winter as other respiratory infections picked up.
“The effectiveness of our vaccines at preventing hospitalisation means unlocking on June 21st could proceed safely. Any decision to delay will be a political choice,” he said.
“Variants and mutations will appear for the rest of time. We have to learn to live with it.
“If our very effective vaccines cannot deliver us freedom from restrictions, then nothing ever will.”
Steve Baker, the CRG deputy chairman, questioned how long the country could “fumble along” with restrictions that had such “devastating consequences” for both business and people’s mental health.
Conservative backbencher Marcus Fysh said delay was a “disastrous and unacceptable policy”.
After hosting the G7 summit in Cornwall over the weekend, the prime minister is thought to have spent Sunday evening going through the latest data with the senior ministers and officials most closely involved in the process.
The so-called “quad” of Mr Johnson, chancellor Rishi Sunak, health secretary Matt Hancock and cabinet office minister Michael Gove were reported to have been briefed by the chief medical officer Professor Chris Whitty and the chief scientific adviser Patrick Vallance.
The latest daily government figures from Sunday showed another rise in infections with a further 7,490 lab-confirmed cases in the UK — up 2,149 from a figure of 5,341 the previous week.
The data also had England with a total of 35,971 positive tests in the past seven days at a rate of 63.9 per 100,000 people.