Boris Johnson will soon confirm that the UK is set to undergo unlock

British Prime Minister Boris Johnson is set to confirm Monday that all remaining lockdown restrictions in England will be lifted in a week's time while urging people to remain cautious amid a huge resurgence of the coronavirus.

Johnson is expected to say at a news conference that face masks and all social distancing measures will be lifted in England on July 19. However, given the sharp rise in new cases, he is also likely to downplay talk of 'Freedom Day'. The UK as a whole has seen infections soar in recent weeks as a result of the delta variant. Daily infection levels are running at over 30,000, their highest rates since January.

Most infections have largely occurred among younger people, many of whom have yet to receive a first dose of vaccine. Though the government has warned that daily case numbers will rise further, potentially hitting 100,000 at some point this summer, it is pressing on with the unlocking because of the rapid rollout of vaccines.

As of Sunday, 69 per cent of the population has received at least one vaccine dose while 52% have had two. The government hopes that the vaccine rollout has severely disrupted the link between infections and those needing hospitalisation. However, there is growing evidence to show that the number of people requiring hospitalisation and dying from COVID-19 are picking up pace, too, though not at the same rate as infections. Still, concerns over the rapid increase in cases have piled pressure on Johnson to take a more cautious approach over the latest unlocking.

For example, he is expected to recommend that people continue to wear face masks in enclosed places, such as on public transport and in shops. Public health officials and scientists have been voicing their concerns, saying ditching masks and social distancing altogether could be dangerous. Professor Peter Openshaw, a member of a group that advises the government on new and emerging respiratory viruses, said it was vital to keep some protective measures in place, such as wearing face coverings.

"I really don't see why people are reluctant to wear face coverings, it is quite clear that they do greatly reduce transmission," he told BBC radio. "Vaccines are fantastic but you have to give them time to work and in the meantime keeping up all those measures which we have learned to reduce the transmission is to me really vital," he said. The British government, which enforced one of the longest lockdowns in the world, has lifted restrictions for England in a series of steps that began with reopening schools in March.

The fourth and final stage was delayed last month to provide time for more people to be vaccinated amid the rapid spread of the delta variant, which was first discovered in India. Other parts of the UK - Scotland, Wales and Northern Ireland - are following their own, broadly similar, road maps out of lockdown.