My noble friend is quite wrong if he is seeking to imply that there is any doubt about lockdowns working. Lockdowns work incredibly well
because they put space between people. The science behind lockdowns is very simple and incontrovertible. That is the learning of the last year, and those who seek to cast doubt on it, time and again, session after session, do us no favours at all. We are at a moment in the cycle of the disease when the weight is being lifted by the lockdown and by the vaccine—it is somewhere between the two. I cannot call it, and Sir Simon Stevens and the Prime Minister cannot call it—it is somewhere between the two. But we should be in no doubt: if there is a variant of concern that makes landfall in the UK and threatens the success of the vaccine, we will be back in lockdown. We should be extremely careful to avoid that eventuality.