[Translation] A randomized, blinded phase I clinical trial to evaluate the safety and immunogenicity of a trivalent influenza virus subunit vaccine in people aged 3 years and above
主要目的:评价三价流感病毒亚单位疫苗在3周岁及以上人群中接种的安全性。次要目的:初步评价三价流感病毒亚单位疫苗在3周岁及以上人群中接种的免疫原性和长期安全性。
[Translation] Primary objective: To evaluate the safety of trivalent influenza virus subunit vaccine in people aged 3 years and above. Secondary objective: To preliminarily evaluate the immunogenicity and long-term safety of trivalent influenza virus subunit vaccine in people aged 3 years and above.