Son 10 has tested positive while my pcr was negative although we were both exposed through the same contact about a week ago. We've been attached at the hip all Christmas so I'm expecting to get it from him anyway in next couple of days, but trying to avoid OH getting it who has been working all over the holidays and on the house much less. Are we fighting a losing battle or is it worth me and son sharing a room at night, alongside windows open, cleaning etc?