DD was sent home from nursery with a temp, told to isolate for 10 days. DP is a secondary teacher and has been told he has to go in. He only has one lesson and will be sitting with other teachers in the staff room for the other two periods. The classrooms are taken up with key workers' children hence teachers having to sit together in the staff room. Yes it's unlikely he has covid but surely this is bad advice coming from a school? Is this common?