The Prime Minister is worried Britain is six weeks behind France and Spain in tackling the virus. He said it is “inevitable” that a second wave would reach the UK.
Mr Johnson is reportedly considering imposing six months of “on-off” restrictions for the whole country as the Government fears the British public is ignoring rules on social gatherings.
Speaking to the BBC, Mr Johnson said he did not “want to go into bigger lockdown measures” but warned that tougher social distancing rules could be necessary.
He said: “We’re looking very carefully at the spread of the pandemic as it evolves over the last few days and there’s no question, as I’ve said for several weeks now, that we could expect [and] we are now seeing a second wave coming in.
“We are seeing it in France, in Spain, across Europe – it has been absolutely, I’m afraid, inevitable we were going to see it in this country.”
The new approach to tackle a possible second wave would see alternating periods of stricter measures with intervals of relaxing the rules.
The plan aims to avoid a national lockdown but could stop different households from interacting.
Hospitality and leisure venues including bars and restaurants could shut down or face restrictions to their opening hours.
The Government is also reportedly considering introducing “targeted shielding” which would give tailored measures to people with serious medical conditions.
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He added: “I don’t want to go into bigger lockdown measures at all, we want to keep schools open and it is fantastic the schools have gone back in the way they have.
“We want to keep the economy open as far as we possibly can, we want to keep businesses going.
“The only way we can do that is obviously if people follow the guidance.”
Mr Johnson said the Government is considering whether it needs to “go further” with restrictions across the country.
When asked about a possible two-week October half-term to bring in a short lockdown, the Prime Minister told reporters he wants to keep schools open.
He said: “What I can certainly say about parents and schools is we want to keep the schools open, that is going to happen.
“We want to try and keep all parts of the economy open as far as we possibly can.”
On Friday, Health Secretary Matt Hancock hinted that measures would need to be maintained into next year.
He told the BBC: “The strategy is to keep the virus down as much as is possible whilst protecting education and the economy.
“And doing everything we possibly can for the cavalry that’s on the horizon – the vaccine and mass testing, and the treatments that frankly, this country has done more than any other around the world to develop.”