World on cusp of 'post-antibiotic era'

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The world is on the cusp of a "post-antibiotic era", scientists have warned after finding bacteria resistant to drugs used when all other treatments have failed.

They identified bacteria able to shrug off the drug of last resort - colistin - in patients and livestock in China.

They said that resistance would spread around the world and raised the spectre of untreatable infections.

It is likely resistance emerged after colistin was overused in farm animals.

Bacteria becoming completely resistant to treatment - also known as the antibiotic apocalypse - could plunge medicine back into the dark ages.

Common infections would kill once again, while surgery and cancer therapies, which are reliant on antibiotics, would be under threat.
Key players

Chinese scientists identified a new mutation, dubbed the MCR-1 gene, that prevented colistin from killing bacteria.

The report in the Lancet Infectious Diseases showed resistance in a fifth of animals tested, 15% of raw meat samples and in 16 patients.

And the resistance had spread between a range of bacterial strains and species, including E. coli, Klebsiella pneumoniae and Pseudomonas aeruginosa.

There is also evidence that it has spread to Laos and Malaysia.

Prof Timothy Walsh, who collaborated on the study, from the University of Cardiff, told the BBC News website: "All the key players are now in place to make the post-antibiotic world a reality.

"If MRC-1 becomes global, which is a case of when not if, and the gene aligns itself with other antibiotic resistance genes, which is inevitable, then we will have very likely reached the start of the post-antibiotic era.

"At that point if a patient is seriously ill, say with E. coli, then there is virtually nothing you can do."

Continued Antibiotic resistance: World on cusp of 'post-antibiotic era' - BBC News

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Antibiotics: US discovery labelled 'game-changer' for medicine - BBC News

Eat Dirt -- It's good for you

The decades-long drought in antibiotic discovery could be over after a breakthrough by US scientists.

Their novel method for growing bacteria has yielded 25 new antibiotics, with one deemed "very promising".

The last new class of antibiotics to make it to clinic was discovered nearly three decades ago.

The study, in the journal Nature, has been described as a "game-changer" and experts believe the antibiotic haul is just the "tip of the iceberg".

The heyday of antibiotic discovery was in the 1950s and 1960s, but nothing found since 1987 has made it into doctors' hands.

Since then microbes have become incredibly resistant. Extensively drug-resistant tuberculosis ignores nearly everything medicine can throw at it.
Back to soil

The researchers, at the Northeastern University in Boston, Massachusetts, turned to the source of nearly all antibiotics - soil.

This is teeming with microbes, but only 1% can be grown in the laboratory.

The team created a "subterranean hotel" for bacteria. One bacterium was placed in each "room" and the whole device was buried in soil.