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High-Density Livestock Operations, Crop Field Application of Manure, and Risk of Community-Associated Methicillin-Resistant Staphylococcus aureus Infection in Pennsylvania

November 25, 2013
JAMA Internal Medicine

Joan A. Casey, Frank C. Curriero, Sara E. Cosgrove, Keeve E. Nachman, Brian S. Schwartz

Nearly 80% of antibiotics in the United States are sold for use in livestock feeds. The manure produced by these animals contains antibiotic-resistant bacteria, resistance genes, and antibiotics and is subsequently applied to crop fields, where it may put community members at risk for antibiotic-resistant infections.

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