High titer serum and immunoglobulin G (IgG) were prepared from specific pathogen free (SPF) chickens immunized with inactivated AIV subtype H9N2. Rabbits were immunized with this chicken anti-H9N2-AIV IgG and high titer serum were collected.

• 将H9N2亚型AIV增殖,经差速离心和蔗糖密度梯度离心提纯后,灭活,免疫SPF鸡,制备高免血清并提纯免疫球蛋白G(IgG)。 以此制备疫苗免疫家兔,制备高免血清并提纯其中的IgG。