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Two weeks ago, I broke the news of a new FDA report that estimated for the first time the amount of antibiotics sold in the United States every year for use in agriculture: 28.8 million pounds.

That long-awaited report didn't answer a crucial question: What volume of antibiotics are sold in the United States each year for human use. It's a crucial question because, in answer to concerns about antibiotic resistance arising on farms, the answer has always been that human medicine is equally culpable because it uses similar volumes of antibiotics.

The only research that has attempted to answer that question is contained in a decade-old report by the Union of Concerned Scientists that put the proportion of antibiotics going to animals at 70 percent of the U.S. total.

That UCS report and estimate are a decade old not because no one has cared about the topic, but because accurate updated figures have been so hard to get. So we owe a special holiday thank-you to the researchers at the Center for a Livable Future, who decided the release of the FDA report justified another attempt to get the numbers straight. They succeeded.

Read the full article on Wired.com