Happily, the journal also provided a remedy based on a simple experiment. When cows were switched from a grain diet to hay for only five days, O157 declined 1,000-fold.

Unhappily, industrial agriculture is not organized to feed cattle with principally grass and hay, but silage and grain-based concentrates. Plans for the future? More maize (corn) and soy. So expect more pollution from unbalanced cow intestines.

We know what healthy farming is, but the money-spinners don't want to do it.