Posting for advice as everything I read seems contradictory. My daughters dad text me to say his girlfriends work colleague tested positive for COVID on Monday. His work mate also lives in the same house as the positive COVID test so he's had second hand exposure through his girlfriend and his work colleague and reading between the lines I think he has been round the person with the positive test at some point in the previous week. He and neither his girlfriend or the guy he works with have symptoms but obviously self isolated. He went and got a test despite not having symptoms and it's come back negative, he is under the impression it means he can still see our daughter this weekend and I'm unsure as a negative result when he may not have had time to develop symptoms yet seems a bit meaningless. Advice seems a bit contradictory online, what would you do? Dd is 12 and really wants to see him but I really can't risk time off work (I'm a teacher) because he passes it on to us.