The article is misleading
If you follow the link in this article to the Independent story, it states that "It is thought that the strain [of salmonella] originated in chickens and turkeys from Ethiopia, Nigeria and Morocco, and that cases in Europe have occurred through imported meat and travel to those countries." There is no evidence that the salmonella superbug was caused by overuse of antibiotics on the farm. The article does say that a new strain of MRSA (a staph infection) was found in milk and thought to have been caused by antibiotics in farm animals, but does not elaborate as to how this was determined.
I grew up on a farm, and I'm not going to say for sure that antibiotic use on farms is not creating superbugs. But if it was, besides creating new superbugs that attack humans the process would also create superbugs from bacteria that only attack farm animals (most bacterial diseases that affect farm animals do not infect humans, even though they are often treated with the same antibiotics). If these new bugs are unstoppable with antibiotics just as they are with humans, then why aren't we seeing massive die-offs of farm animals? There would be nothing to stop an outbreak once it got started. As far as I know, this hasn't happened yet.
