Influenza infection begins when hemagglutinin binds to receptors on the host cell .

当血凝素结合到宿主细胞受体上时，流感病毒的感染就开始了。

Finally , they spliced the hemagglutinin gene into a common-cold virus and used that to make a vaccine .

最后他们将红血球凝集素基因与普通流感病毒融合，并用其生产疫苗。

They designed a piece of mrna encoding the hemagglutinin of the influenza strain h1n1 .

他们设计了h1n1流感病毒毒株编码血凝素的一个mrna片段。

Now , most flu vaccines consist of hemagglutinin and neuraminidase , the two proteins covering the surface of the virus .

现在，大多数流感疫苗是由复盖在这种病毒表面的两种蛋白质血凝素和神经氨酸酶组成的。

Hemagglutinin is a viral protein that enables the flu virus to enter host cells .

血凝素是一种病毒蛋白，能帮助流感病毒侵入宿主细胞。