NPR Notícias de negócios: The U.S. Can't Really Know If Farmers Are Cutting Back On Antibiotics, GAO Says

The U.S. Can't Really Know If Farmers Are Cutting Back On Antibiotics, GAO Says
New FDA rules limit how farmers can give antibiotics to animals raised for meat. But a Government Accountability Office report says the FDA doesn't collect the data to know if that policy is working.

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