Methods Influenza A (H3N2, H1N1) and B virus were inoculated in MDCK cells, MEK cells and FRhK-4 cells under different culture conditions to observe cytopathic effect (CPE), hemagglutination titer.

• 方法采用MEK细胞、FRhK-4细胞、MDCK细胞分别接种甲型流感病毒H1N1型、H3N2型和乙型流感病毒疫苗毒株,观察3种毒株在不同培养条件下的细胞病变、血凝滴度。