That would be a start. Then we put a ban on the sale, for human consumption, of animals that were treated with antibiotics. If you want to save your pet cat's life-- or your pig's-- that's fine. Just don't sell it as food.
That's the low-hanging fruit. It will make meat slightly more expensive, but I'm okay with that. People in the developed world eat too much meat for their own health anyway.
What remains is educating people about antibiotics so they stop asking for them when they get colds and flus (they don't do a damn bit of good for a viral infection). Doctors in the US tend to be over-liberal with the drugs, even knowing that they have no effect on viruses.