My mum started with symptoms last Sunday (12/12/21) she has isolated at home unable to get to a test centre and unable to get a postal test. I now have my car back from the garage and there’s an appointment I could take her to tomorrow, she still has symptoms. (I would risk it with masks and windows open, I had it about a month ago and am triple jabbed). She’s done negative lateral flows throughout. If I take her for the test tomorrow and it’s positive then it must be that she’s had it since at least last Sunday as she’s been completely alone since then.
Would she have to isolate 10 days from tomorrow or last Sunday if it was positive? She wants the test because she wants to be certain she’s had it- she’s anxious about getting it so I think would be relieved if this was it, but is worried about then being stuck in another 10 days if she’s no longer contagious.