So, in essence, we've got three core findings here. and we've been in the fortunate position of really being able to track the entire scottish population. so, the first is that we've seen 0micron just run through scotland incredibly rapidly. the first case was towards the end of november, november the 23rd, and then in the three to four weeks subsequently, we've seen that it's become the dominant variant in scotland. so, it's basically swept through the population very rapidly. the second issue and a big unanswered question that we've been grappling with is what's the risk of severe outcomes? ...