Sorry to be a pain - searched online and advice is ambiguous.
Adult DD lives at home with us and her employer just telephoned to say that a work colleague of hers has tested positive for Covid 19. She last worked with this colleague a week ago (they have been doing 1 week on, 1 week off) and her boss has told her that she needs to isolate for 7 more days.
So for the last week she's not been isolating at all, as she didn't know. What about the rest of the household? We have been living for a week in a house with someone who is now having to isolate. Do the rest of us isolate or not?
She's going to have a test now, and we can all have one too. Do we need to wait until after her test to find out whether she has it, or do we need to all isolate now?