@Quarantino
Going back a while but did we ever see any consensus about what made cases rise so rapidly around the 1 Sept in nearly every Local Authority in England? There was a heat map that showed this on Twitter somewhere, annoyingly I can't find it at the moment. If it was solely 'new variant' it wouldn't have shown everywhere at the same time, surely, and it was too early for Uni/schools etc I think?
It wasn't really rising rapidly at that point.
I'd say last week in August it clearly began to rise. I was on holiday with my parents and we discussed that it looked like we could be going into a second wave. Whether that was EOTHO or holidays, I don't think it could be said. But it was only a slow rise.
Then it continued to slowly but steadily rise gently for the first fortnight, then quicker from around the 16th September and really quicker rise at the end-about 28th September.
The 16th could be down to schools, timing would be quite reasonable for that, 28th could be that spread going wider and to family members.
I don't think the new variant shows up really until November/December time. That's when our area started rising rapidly, and, if you compare the heat maps round us to the heat maps in Lancashire during their October rise, then it looks quite different with number of under 15s infected.