NPR

'Predatory Bacteria' Might Be Enlisted In Defense Against Antibiotic Resistance

Microbe-eating-microbes are found in "almost every ecosystem on Earth," says a defense department scientist who hopes bacteria of this type might one day be deployed to fight human infections.
<em></em>It's a bacteria-eat-bacteria world, scientists say. <em>Bdellovibrio bacteriovorus, <strong></strong></em>shown here in false color, swims around with the aid of its whip-like tail, attacks common germs six times its size, then devours them from the inside out.

Here's a bold idea to fight back against bacteria that can't be stopped by antibiotics: Go after them with germ-eating microbes. That reasoning lies behind an intriguing line of research that might also be put to use in the event of a germ-warfare attack.

It might seem strange to think of microbe-eating microbes, but "actually they're found in almost every ecosystem on Earth," says Brad Ringeisen, deputy director of the Biological Technologies Office at the Defense Advanced Research Projects Agency (DARPA).

They're even living inside us, but at levels so

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