FDA asked to restrict antibiotics on livestock

Advocacy groups have petitioned the US Food and Drug Administration to restrict the use of certain antibiotics given to livestock. They claim that using these antibiotics contributes to the development of antibiotic-resistant bugs that are dangerous to humans, and that the FDA’s efforts to encourage farmers to stop haven’t been effective.
Three years ago, the FDA created a voluntary program that "disapproved" of the use of antibiotics to promote weight gain in livestock. But the prob