People who are at enhanced risk are on 12 weeks' lock-down. I think that is an indicator as to how long the general lock-down could well last (mid to end of June). Look also at how long the lock-down lasted in Wuhan. And look also at when Italy starts to lift its lock-down - we are on much the same curve as Italy, but a couple of weeks' behind. I think our government will also be looking very closely indeed at what happens to the numbers in Wuhan, Italy, etc. after their lock-downs are lifted, before making any decisions about lifting our lock-down.