This Week in PNAS

Soil and manure from pig farms where antibiotics are commonly used are prone to harboring antibiotic resistance genes, according to a study in the early, online edition of the Proceedings of the National Academy of Sciences. Researchers from China and the US assessed manure, manure compost, and manure compost-treated soil samples from three large Chinese swine farms, using quantitative PCR arrays to test for 244 antibiotic resistance genes.

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