Only those who've been in contact with them I think. So their family would have to isolate for 14 days to ensure they didn't have it. Once you have it, so long as you're over the symptoms, 7 days isolation is usually what's needed.
Anybody out there fancy giving it a go.
I have been hinting at leaving for some time now and this seems like a good time to ask if there is anyone who fancies
spending an hour of their time a week to run it.
I have enjoyed my time doing it but I am getting to old for it all these days.