I don't know anything about "creeping" Salmonella. A lot of investigation and testing is going on and being reported each time they find something. And of course the consumer starts getting paranoid and will have symptoms (real or imagined) which causes the testing to branch out, and then it takes days for lab testing to be done.....all way too complicated and time consuming, and often without really knowing factually what the true source of the outbreak is. The recent Tomato issue was a good example of this.
Everyone agrees that the situation sucks and has to be changed so that contaminations, accidental, natural, or otherwise, can be detected and stopped at the source before they get into the distribution channels. Its not that many years ago that such mass distribution of foods was even possible, so nobody really anticipated needing complex and expensive testing and controls.
But think about it....you suffer from food poisoning on a regular basis in your own home, though most are minor and short lived. Our immune systems do their job. And the next time you have an upset stomach or a little diarrhea, think about it.....
Support bacteria. It's the only culture some people have.