在这里，称为噬菌体的使细菌感染的病毒，被设计成这样，即每一种病毒表面都涂了一层独特的随机的肽。

Here viruses that infect bacteria, called phage, are engineered such that each virus has on its surface coat a unique random peptide.

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我们用腺病毒做了一种快速测试——如果你是被病毒所侵袭，那么我们治疗的方法和由细菌感染的红眼病的治疗方法完全不同。

We do a rapid test for adenovirus - if that's what you have, we treat it very differently than if your pinkeye is bacterial.

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腹泻通常是胃肠道感染的一种症状，可由多种细菌、病毒和寄生虫引起。

Diarrhoea is usually a symptom of an infection in the intestinal tract, which can be caused by a variety of bacterial, viral and parasitic organisms.

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