Mr Johnson said: “Clearly a huge amount of work have been devoted to the possibility of a second wave ever since the disease arrived in this country.
“Our anxiety about the second wave has been very much at the forefront of our minds.
“We will obviously keep all sorts of measures in reserve.”
He confirmed that this included local, regional and national lockdowns.
He continued: “Of course it has to be, as it were, the ultimate resort.
“We really don’t want to do that again, we really don’t.
“So we will also be looking at other ways in which we can respond to the possibility of a second wave that reflect the vulnerabilities of particular groups and the prevalence of the second wave in certain areas.
“We’ll be bringing forward more detail about exactly how we propose to do that shortly.”
More to follow…