为什么叫猪流感？ 为什么H1N1病毒以前叫猪流感病毒？

Why is this new H1N1 virus sometimes called “swine flu”?

 This virus was originally referred to as “swine flu” because laboratory testing showed that many of the genes in this new virus were very similar to influenza viruses that normally occur in pigs in North America. But further study has shown that this new virus is very different from what normally circulates in North American pigs. It has two genes from flu viruses that normally circulate in pigs in Europe and Asia and avian genes and human genes. Scientists call this a “quadruple reassortant” virus.

这种病毒最初是被称为“猪流感” ，因为实验室测试表明，这一新的病毒的许多基因与通常发生在北美的猪身上的非常类似的流感病毒，。

不过更多的研究显示，这个新的病毒与北美猪的病毒非常不一样。他有2个欧洲和亚洲禽流感的基因以及人类的基因。科学界称这个为“quadruple reassortant”病毒