UK's PM eyes end to lockdown amid vaccine success
In a statement to parliament, Johnson is expected to confirm the reopening of all English schools on March 8 in the first big step towards restoring normal life, nearly a year after he imposed the first stay-at-home order.
The Conservative prime minister, who was accused of acting too late and relaxing curbs too early last year, says he will lay out a "cautious but irreversible" plan to ensure no more lockdowns.
"Today I'll be setting out a roadmap to bring us out of lockdown cautiously," he said in a Downing Street release, ahead of his House of Commons appearance and a televised news conference later Monday.
"Our priority has always been getting children back into school which we know is crucial for their education as well as their mental and physical well-being, and we will also be prioritising ways for people to reunite with loved ones safely."
Britain is one of the countries hardest-hit by the Covid-19 pandemic, with more than 120,000 deaths.
It was the first nation to begin a mass vaccination campaign, in December, but surging case numbers forced a return to lockdown in early January after an easing of curbs over Christmas.
More than 17 million people have now received at least a first vaccine dose - one-third of the adult UK population.
Case numbers falling
Over the weekend, the government said it would seek to offer a dose to everyone aged over 50 by mid-April, and to every other adult by the end of July, accelerating the latter timetable from September previously.
Case numbers are falling again and early evidence suggests the vaccinations are reducing serious illness, after some intensive-care units were overrun last month and queues of ambulances formed outside hospitals, unable to transfer their patients.
Johnson said the planned relaxations would be uniform across England, after regionalised tiers were put in place last year, but stressed that further progress would hinge on factors such as any new Covid variants.
That, and proof that the National Health Service is not facing any more "unsustainable pressure", offer Johnson some flexibility against pressure from Conservative backbenchers who are pressing for a cast-iron timeline to normality by the summer.
Teaching unions say meanwhile that allowing all pupils to return on the same day is "reckless", but the March 8 target is backed by the main opposition Labour party.
"We all want this to be the last lockdown so we've got to come out of it in a measured way, but make sure we are not back where we started in a number of weeks or months," Labour leader Keir Starmer told Sky News.
'Not through this yet'
Also from March 8, the government plans to allow elderly residents of care homes to receive indoor visits from one designated relative or friend, and is expected to permit limited social mixing by the public outdoors.
But the full reopening of retail and pubs, and attendance at sporting events such as Premier League football, will be delayed until later.
"All of us understandably want to go back to normal, but it is right to be cautious," Health Secretary Matt Hancock said, noting that nearly 20,000 people remain in hospital with Covid.
The devolved governments of Scotland and Wales, which administer their own health policy, are letting some younger pupils return to school this week.
In Northern Ireland, the administration is resuming younger classes on March 8 but has extended its overall lockdown to April 1.
John Edmunds, an epidemiologist and government advisor from the London School of Hygiene and Tropical Medicine, told the BBC: "The vast majority of us are still not immune.
"Easing up too quickly will increase pressure, cases will increase again. We're not through this yet."