Farm mice study shows antibiotic resistance is an environmental problem, not just a medical one

Scientists analyzed the genomes of gut microorganisms from an extensive population of 875 wild house mice (Mus musculus) collected from farms in Germany. They searched for genes responsible for resistance to common antibiotics and correlated the presence of these ARGs in the mice with a range of environmental and host variables, such as land use and farming practices, livestock density for cattle, pigs and poultry, sex and physical condition of the mice, as well as climatic variables.

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