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The pristine Platte river picks up microbial genes for antibiotic resistance as it flows past human settlements. Image: Philip Nealey/Getty
In the Rocky Mountains, the South Platte River system flows east through the Coloradan plateau that has plenty cattle ranches, sheep pastures, dairy farms, and water treatment plants. A new survey shows how human activities have affected the concentrations of antibiotic-resistant genes in the watershed.
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According to a new study, more than 40% of tuberculosis infections that are resistant to front-line antibiotic treatments have also become resistant to some common backup drugs. Efforts to control tuberculosis are being hindered by the emergence of multi drug-resistant (MDR) strains, making it harder to combat.
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Bacteria living within the gut could have a link to obesity, possibly explaining how antibiotics fatten farm animals, and humans as well, and predispose some organisms to obesity.
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