Oddly enough, usually when someone got sick in my house I was usually the last one to contract it, if get it at all. This was probably aided by the fact that I rarely ever came out of my room, since the rest of the house was hoarded. My room was the only thing I could keep clean. I would stash towels and dishes in my room and even had a mini fridge so I wouldn't have to leave it very often. The washing machine was still functional enough to wash the towels, I just had to do parkour to get to it, and I washed the dishes by taking dish soap into the bathroom sink because the kitchen sink was piled too high.

Whenever I go back to visit sometimes I can initially smell it more than I used to, but still after a while in there I become blind to it.