Thanks for all of your responses and I appreciate the advice and the reassurances.
On the other hand, the kind of issues I deal with go a bit beyond hand washing.
For instance, I discovered my 12 yr old DD sneaking her most cuddly chickens to her room to roost.
DW and I put a stop to that, but I'm not sure the rug in there will ever get completely clean (sorry, that was probably too much information). Chickens still occasionally "visit" the interior of our home.
Also, I am a having a little breathing issue this week and I'm not sure how to dust or spray the chickens (at least one has lice... which I'm equated to they all have lice) safely, let alone avoid aggravating my problems. I don't feel real comfortable with letting my DD handle insecticide (or even DE).
BTW, DD discovered the bugs on the one chicken whilst she was hanging out in DD's room. The next day, DD had a bite or two. We changed the sheets and vacuumed.