People living near pig farms or agricultural fields fertilized with pig manure are more likely to become infected with methicillin-resistant Staphylococcus aureus (MRSA) bacteria, according to a paper published today in JAMA Internal Medicine1.
Previous research has found that livestock workers are at high risk of carrying MRSA, compared to the general population2. But it has been unclear whether the spreading of MRSA through livestock puts the public at risk of infection.
The study examined the incidence of infections in Pennsylvania, where manure from pig farms is often spread on crop fields to comply with state regulations for manure disposal. Researchers reviewed electronic health-care records from patients who sought care from the Pennsylvania-based Geisinger Health System (which helped to fund the study) in 2005–10.
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