I read this article this morning and was just amazed. I had NO idea that they’d started manipulating the DNA of animals, especially food animals. (The article is behind a paywall, but you have three free articles per month.)
Evidently, in trying to ensure that cows didn’t grow horns they also passed along something interesting – a resistance to antibiotics. At the DNA level. Just think what would happen to all of us if that was passed along in the food we ate.
Thankfully, these cows have not been approved for the food supply, but doesn’t it make you wonder? They discovered this abnormality by accident. Gee, what else is in that hamburger?