Family members tested + Christmas eve after feeling ill on 23rd. So we cancelled them coming to us for Christmas. Now planning for them to come down on 29th. They will need to stay with us though as traveling from Midlands to us in London. Is that long enough do you think? I really don't want to get covid again if I can avoid it. I want them to test and only come if they're negative but they're convinced if it's been 5 days they'll not be contagious.