When newly formed viruses then bud from the cell, they can be trapped by the same sugar and must deploy an enzyme called neuraminidase to snip the sugar and free themselves.

• 当新合成的病毒要从细胞内破巢而出时，同样的糖分子也可以将它们抓住；这时病毒要用一种称为神经胺酸酶（neuraminidase）的酵素将糖分子切断，好造成脱离。