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That's scarier than any horror movie that I've ever seen. It also makes perfect sense. You're providing nature with an evolutionary pressure and it adopts by breeding the most resistant strains until they are undefeatable.

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Exactly why industrial scale monoculture is the single greatest threat to humanity. We rely almost entirely on a few dozen animals, vegetable plants, grasses and a handful of other organisms that have all have their comfort zones artificially inflated and their genetic variance severely compromised by human intervention.

We've essentially created vast plateaus within the evolutionary landscape and these are beginning to be occupied by pioneer species that will quickly take the advantage to adapt.

Scary stuff indeed.

It might help you feel better to know that E. coli is harmless, perhaps actually healthy, and competes in your intestines with other bacteria that might make you sick. (Except for some recent strains of E. coli that produce toxins.) The usual reason people get worried about E. coli contamination of food is not that the E. coli itself is dangerous, but rather that it's a reliable and easily-detectable indicator of fecal contamination.

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