Circumstances have soared in London, with some 36,000 confirmed new infections within the week to December 12.
He repeated his message that the present Christmas guidelines — which permit three households to combine indoors between 23 and 27 December — had been “very a lot a most” and “not a goal individuals ought to goal for”.
Talking to reporters on Friday afternoon, Sir Keir mentioned: “[Mr Johnson] has bought to toughen up over Christmas, he’s bought to point out some management.
“Easing the restrictions I feel goes to be the subsequent massive mistake for the Prime Minister.”
“Pressed on what precisely he desires by way of restrictions over the festive interval, Sir Keir mentioned: “In Wales, for instance, they introduced it down to 2 households, that appears a step in the proper path, may wish to even speak concerning the numbers inside the households.
“However what you possibly can’t have is a Prime Minister who, as he’s carried out all through this pandemic, he’s been too gradual to behave.”
Northern Eire is about to enter a tricky new six-week lockdown on Boxing Day, whereas Wales will go into its personal lockdown two days later.
The Scottish authorities has mentioned “nothing could be dominated out” forward of a overview on Tuesday.
Professor John Edmunds, who sits on the Scientific Advisory Committee for Emergencies (SAGE), warned on Friday that “very stringent” measures might need to be imposed for a very long time to convey the epidemic all the way down to a “secure” degree.
“In the meanwhile, it doesn’t seem like the tier system is holding the epidemic wave again sadly,” he instructed Sky Information.
“So, I feel we’re going to have to have a look at these measures and maybe tighten them up, we actually will, that’s a horrible factor to need to say, however we’re in fairly a tough place in the intervening time.”