Special Report: Powerful antibiotic for cows often misused by farmers
Michael Erman and Brian Grow
Reuters
It is one of the most potent antibiotics used by U.S. cattle and dairy farmers, the key component in the top-selling drug line of Zoetis, the world’s largest animal health company. But the strength of the antibiotic ceftiofur – and the frequency with which it’s being misused on farms across America – has created a threat to human health that may overshadow the drug’s effectiveness, a Reuters examination shows.