Thank you for your response. Of course, the success of any such initiative is very much dependent on the initial testing, and we've seen as we have this week with some cases relating to pubs in England that immediate tracking based on quick testing is the most effective way to identify those who should be self-isolating. At the same time, we're still hearing of cases where people with symptoms are actually waiting more than five days for test results. So, why are we still seeing this lag, Minister, in getting test results back? What implications would you say that has for preventing the further spread of the disease?