Dr Conlon and colleagues have discovered a way to tweak their molecular structure, making them less toxic to human cells but more powerful germ killers.

康伦博士和同事发现了一个能改变它们分子结构的办法，使它们对人体细胞的毒性变小，但杀灭细菌的能力更强。

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In Iraq I persuaded Dr Rihab Taha, known as Dr Germ, to be interviewed for the first time by a journalist.

BBC: Meet the Panorama team