Scientists in China have found a resistance gene for colistin, what's commonly known as the "last resort" antibiotic. Colistin has been the drug doctors turned to when all other antibiotics failed to fight life-threatening drug-resistant bacteria. Now, researchers in China have found a new bacteria gene that resists colistan - and it is spreading. Medical researchers fear we are near a post-antibiotic era. "At that point if a patient is seriously ill, say with E. coli, then there is virtually nothing you can do," one doctor said.
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