There's a variant of omicron called b a point two, which has been on the rise. And there are signs that could be more transmistible than b a point one. You've also got things like a potential impact of waning immunitya lot of ar the more vulnerable and owdly people ya be stutty getting their boosters back in the autumn. So it's quite hard to say what is the major factor. It's also quite unclear whether it's the same thing that's happening in all parts of the u k. O suggests that there are mor til practures going on here.