I try to buy stuff that's free-range, antibiotic free, or made without any growth hormones, but I don't always.
I've taken food handling classes because of working in bars and restaurants in Las Vegas. I also cook a lot at home, so I know how to handle raw meat, eggs, etc.
I mean to me it's just common sense almost, like people in modern society have gotten so used to preservatives, convenience foods and microwaves maybe they've forgotten how to handle food, which can carry germs, and it always has. This isn't a new development.