Pesticides have no effect whatsoever on bacteria. And dung from plant fed animals is harmless.

And all bacteria is not equal, so it's doesn't matter how much there is - it matters what kind. Cheese is just full of bacteria, so are pickles, and yogurt. Food grown using antibiotics will have more of the dangerous resistant kind, rather than the beneficial kind.

With the sprouts it was not the organic that was the issue - it's simply that it's sprouts. Sprouts are wet, not cooked, and not washed. It's a perfect environment for bacteria if you are not careful.

I don't think non-organic sprouts even exists - they grow in less than a week, why would you put pesticides on it?