However, I would point out that this is ongoing. If we lose the effect of an antibiotic, we may never get it back.
There's an antibiotic used in this country and in the United States, Cipro, that can be used on people for a disease called campylobacter, which is like salmonella, a bad vomiting, diarrhea disease. The level of resistance to that antibiotic was very low until we starting using it on animals. Now Cipro is rarely used as a first drug of choice for diarrheal diseases in this country or in the U.S. However, in Australia, where they never allowed it for use in animals, the resistance to Cipro for campylobacter is still very low, so that they are still able to use that drug in Australia.