One test studied the impact of the antibodies on growth of the virus in cell culture, and the other assayed the ability of the antibodies to inhibit an important viral protein called hemagglutinin.

• 一种是抗体对培养基中病毒的生长率，另一种则是测试一种叫做红细胞凝聚素的蛋白质，这种蛋白质能反映抗体抑制病毒的能力。