But here's the kicker. This bacterium has been isolated from people, society — and drugs — for 4 million years, scientists report [nature.com] Thursday in the journal Nature Communications.
That means it hasn't been exposed to human drugs in a clinic or on a farm that uses them. But it has the machinery to knock out these drugs. And that machinery has been around for millions of years.
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Because, Barton says, the bacterium is helping scientists understand where antibiotic resistance comes from and, hopefully, new ways to stop it. And the bacterium — called Paenibacillus (pronounced "penny-bacillus") — isn't pathogenic. It won't hurt you. It's just capable of evading many, many antibiotics.