Superbugs evolve when common bacterial infections develop resistance to the drugs used to treat them.

超级病毒是由那些产生抗药性的常见细菌演变而来的。

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Bacteria exposed to the drugs develop resistance, Mitchell said, so “we have the risk of creating these bacterial monsters.”

暴露在药物下的细菌能够产生抗药性，因此，米歇尔说：“我们面临正制造这些细菌怪物的危险。”

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Bacteria exposed to the drugs develop resistance, Mitchell said, so "we have the risk of creating these bacterial monsters."

暴露在药物下的细菌能够产生抗药性，因此，米歇尔说：“我们面临正制造这些细菌怪物的危险。”

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Yet growing bacterial resistance to existing drugs and novel microbial threats make the urgency which drove the original development of penicillin as vital as ever.

ECONOMIST: The cost of drugs