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Allen Leonard, research associate with Texas A&M AgriLife Research, uses a custom spray rig to apply herbicide to Roundup Ready alfalfa test plots.

Weed-killing sprays may also be killing our ability to fight bacteria

Science

Penicillin overkill has created life-threatening bacteria that are resistant to antibiotics. But now some new research shows that common herbicides used in farming can also breed resistant bacteria, and no one’s sure how that may affect humans.

A facsimile of a page from Bald's Leechbook

A deadly modern disease may have an unexpected ancient cure

Medicine
A newly discovered soil bacterium, Eleftheria terrae, is able to make teixobactin, a new antibiotic that can kill a range of disease-causing bacteria.

Scientists discover a potent new antibiotic

Medicine
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