The host, whether it is a person, bird, or pig, provides a place for influenzas to make contact, exchangegenetic material, and form new viruses.
无论是人、鸟还是猪，作为宿主都能为流感病毒提供接触、交换遗传物质和形成新病毒的场所。
2
The current winter season gives influenza viruses an opportunity to inter-mingle and possibly exchange their genetic material in unpredictable ways.
此一冬季使流感病毒有机会混合，并有可能以难以预测的方式交换其遗传物质。
3
And this means that the viruses that we're seeing can exchangegenetic material with other viruses that are circulating. This can happen in humans, in pigs, in birds.