So child goes to a group activity in a classroom with doors and windows open. All children stay in their own 2m square to do said activity but I am contacted by the activity provider to say as DC had a short conversation, at the end, with someone who later tested positive that he should isolate. This would have been less than 5mins at a distance of around 1m. To my mind the rules suggest he does not count as a close contact as not less than 1m or more than 15mins. I am proposing to daily test him although primary school age as I have them at home. WWYD?