How Superbugs Hitch a Ride From Hog Farms Into Your Community

by Tom Philpott,  Mother Jones

Factory-scale farms don’t just house hundreds of genetically similar animals in tight quarters over vast cesspools collecting their waste. They also house a variety of bacteria that live within those unfortunate beasts’ guts. And when you dose

the animals daily with small amounts of antibiotics—a common practice—the bacteria strains in these vast germ reservoirs quite naturally develop the ability to withstand anti-bacterial treatments.

Antibiotic-resistant bacteria leave these facilities in two main ways. The obvious one is meat: As Food and Drug Administration data show, the pork chops, chicken parts, and ground beef you find on supermarket shelves routinely carry resistant bacteria strains. But there’s another, more subtle way: through the people who work on these operations.

In a new paper, a team of researchers from Johns Hopkins and the University of North Carolina took nasal swabs from 22 North Carolina hog-facility workers over 14 days. The results: 10 of them proved to be “persistent” carriers of a strain of bacteria associated with livestock called Staphylococcus aureus—that is, they carried for up to four days after their last day at work. Of those 10,…Read the entire story.

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