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Encouraging Disorder

Pseudomonas aeruginosa is naturally resistant to most antibiotics, can rapidly evolve, and can even stand upright and walk, says New Scientist's Clare Wilson. Millions of them can join together to overcome a patient's defenses, and the bug's ability to work together is part of the reason why it's so dangerous. And yet, Wilson says, "the real mystery has been why it doesn't kill more of us." That mystery may now be solved, however, and the answer may provide researchers with a clue as to how to defeat antibiotic resistance in other bugs. New research shows that Pseudomonas may be too disorganized to function at maximum efficiency — the Pseudomonas "armies" are often "dominated by cheaters and layabouts, who feast on the spoils of victory but ignore all orders to attack," Wilson says. "These selfish bacteria multiply faster than the obedient ones, resulting in a less aggressive infection." And now, researchers are trying to use this discovery to find ways to defeat other so-called superbugs like MRSA, perhaps by deliberately encouraging the growth of these selfish bacteria strains and injecting them into people. "These discoveries made researchers realize that it might not be necessary to kill bacteria to prevent them harming us," Wilson adds. "Instead, we could just stop them ganging up on us."

The Scan

Not as High as Hoped

The Associated Press says initial results from a trial of CureVac's SARS-CoV-2 vaccine suggests low effectiveness in preventing COVID-19.

Finding Freshwater DNA

A new research project plans to use eDNA sampling to analyze freshwater rivers across the world, the Guardian reports.

Rise in Payments

Kaiser Health News investigates the rise of payments made by medical device companies to surgeons that could be in violation of anti-kickback laws.

Nature Papers Present Ginkgo Biloba Genome Assembly, Collection of Polygenic Indexes, More

In Nature this week: a nearly complete Ginkgo biloba genome assembly, polygenic indexes for dozens of phenotypes, and more.