British Prime Minister Boris Johnson announced on Wednesday that all the additional restrictions brought in to contain the spread of the Omicron, or Plan B measures, will be allowed to lapse from next Thursday as analysis shows that the new variant of COVID-19 has now most likely peaked in the country.

This means people in England will no longer be told to work from home where possible and mandatory COVID-19 vaccine certification required for large venues will also come to an end.

The government will also no longer mandate the wearing of face masks anywhere, relying on the judgment of the public instead, while compulsory face masks in school classrooms will be scrapped sooner from this week itself.

Johnson told the House of Commons that the latest Office for National Statistics (ONS) analysis shows that Omicron has now most likely peaked in the country, allowing for a move back to so-called Plan A or minimum COVID restrictions.

"Today's latest ONS data show clearly that infection levels are falling in England and while there are some places where cases are likely to continue rising, including in primary schools, our scientists believe it is likely that the Omicron wave has now peaked nationally, Johnson said.

"So, this morning, the Cabinet concluded that because of the extraordinary booster campaign, together with the way the public have responded to the Plan B measures, we can return to Plan A in England and allow Plan B regulations to expire. As a result, from the start of Thursday next week mandatory certification will end. Organisations can, of course, choose to use the NHS COVID pass voluntarily but we will end the compulsory use of COVID status certification in England, he said.

He pointed to ongoing significant pressures on the National Health Service (NHS), especially in the northeast and north west, but noted that hospital admissions have now stabilised, with admissions in London even falling.

"The numbers in intensive care not only remain low but are actually also falling," added Johnson.

England had moved to the so-called Plan B measures on December 8, 2021, at the peak of the Omicron surge. Other devolved parts of the United Kingdom follow roughly similar guidelines on COVID restrictions.