I've always been fanatical about handwashing and PPE, but earlier in my career I had MRSA cellulitis three different times plus C. diff
. However, not only did I work through it all, I think my immune system was stronger than most because it was challenged so many times by being in contact with sick folks.
Heck, from about my third year in nursing until I was dx'd w/ diabetes last winter, I rarely had so much as a case of sniffles, even when all those around me were dropping like flies with colds, flu, double-enders, whatever was going around. Now I do catch cold more frequently than I used to, but except for the bronchitis that flattened me back in April, I still hardly ever miss a day's work. I think staying well is mostly made up of attitude, but some of it is being exposed to so many illnesses and building up immunity.......and yes, some of it is good old dumb LUCK.