Has anyone contracted CV since lockdown, observing all rules, and not know where you got it?

[KenDodd]

Or well, two weeks after lockdown started to allow for incubation period. If you have, is it a confirmed case? And how much have you been going out and to where?

I don't know anyone who has had it since lockdown. I'm in London. The only people I've known who have had it caught it before lockdown started and they all believe they caught it at parties/large gatherings.