Antibiotics such as penicillin have been key to the decline of infectious diseases over the last 60 years, but bacteria are becoming increasingly resistant to existing drugs.

在过去的60年里，抗生素比如青霉素在控制传染病方面有着关键性的作用，但是细菌对现有的药物的耐药性也越来越强大。

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Doctors around the world are becoming increasingly concerned about the rise of so-called superbugs which are resistant to antibiotics.

BBC: Superbug kills Hong Kong woman