初步调研后的结论表示，这些病症并非季节性流感所致，而是因为一种由猪、鸟、人类病毒组成的全新杂交病毒链。

After preliminary investigations, it was concluded this month that the cause is not seasonal influenza but rather an entirely new hybrid strain composed of pig, bird and human viruses.

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几年前，研究人员发现了一种常见的人类病毒病原体和肥胖之间的联系，并由此创造出专业术语“infectobesity”。

The term “infectobesity” was coined several years ago by researchers who discovered a link between a common human viral pathogen and obesity.

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对一种动物病毒而言，能够使其更容易地在人与人之间传播的一种方式是与人类病毒结合。

One way for an animal virus to become able to pass easily from person to person is to combine with a human virus.

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