Britain’s Prime Minister Boris Johnson has announced the government will adopt new COVID rules, turning to “Plan B” to manage the new Omicron strain of the virus

Under the new Plan B rules, people in England are being asked to work from home again if possible and face masks will be compulsory in most public places, as part of new rules to limit the spread of Omicron.

The Prime Minister also announced that vaccine passports will also be needed to get into nightclubs and large venues from next week.

Boris Johnson announced the government was moving to its back-up plan of extra Covid rules at a news conference.

“It’s not a lockdown, it’s Plan B,”

Johnson says that moving to the tougher measures was the “proportionate and responsible” thing to do, but insisted it would not become a lockdown.

The PM stated that much more is still being learned about new variant Omicron, including from the World Health Organization and the picture surrounding the variant might get better, but that it “could lead to a big rise in hospitalisations and therefore sadly in deaths”.

Under the new rules, face masks will be required in more public settings – including theatres and cinemas – from Friday, and from Monday, people will be asked to work from home where possible.

The NHS Covid Pass will also be required for visitors to nightclubs, indoor unseated venues with more than 500 people, unseated outdoor venues with more than 4,000 people and any event with more than 10,000 people from next Wednesday.

Will Christmas be cancelled?

But Mr Johnson said Christmas parties and nativity plays should still go ahead – as long as the guidance is followed.

Many of the questions the PM faced centred on the row over the Downing Street Christmas party at the height of lockdown rules last December.

Government adviser Allegra Stratton – who was seen with other No 10 staff joking about the party in a leaked video from last year – resigned just before the news conference, saying she would always regret her remarks.

Earlier Mr Johnson apologised in the Commons for this video, although he said that he had been repeatedly told there had been no party. The Metropolitan Police has now said they will not investigate the issue, due to lack of evidence.

According to British media, when Johnson was questioned at the news conference regarding if the Plan B announcement was timed to divert attention from the Christmas party, the prime minister denied that was the case. Instead, the PM went on saying the government did not want to delay bringing in the rules which were important to protect public health.