Tetravalent influenza split virion vaccine, inactivated (Hualan Biological)

To evaluate the inter-batch consistency (CI) of quadrivalent influenza vaccine (split virion) among healthy people aged 18-59 years； Secondly, to evaluate the safety and immunogenicity of quadrivalent influenza vaccine (split virion) in the expanded population aged 3 years and above, in order to observe the rare adverse reaction of 1‰.

评价四价流感病毒裂解疫苗在3-8岁健康人群中全程2剂程序接种后的免疫原性和安全性。