Just that really. If I come down with symptoms surely my DH and DS are inevitably already infected? We have a small house and have spent most of our waking hours together in the same small living area for the last few weeks. My son is always all over me, sitting on me, cuddles etc. I sleep with my DH. Advice is that if you get symptoms you should isolate from others on your household. Why? Not being an arse just wondering how this helps when we spend all our time in very close proximity.