You know, this is such a change in habits for me. I've never been leery of germs and have a pretty strong constitution (hopefully still). I spent my childhood in Costa Rica, where we were always in the dirt and stuff, many of us actually had treatments for worms and parasites of one sort or another... traveling now, I'm fortunate to never have a problem with local foods, water etc., never had issues with Montezuma's revenge and such......and here I am now with a cupboard stuffed with all sorts of preventative lotions, liquids, zinc lozenges, advil, immunity strengtheners like echinacea, turmeric and the like. It's crazy.