[Translation] An open-label, randomized, blinded, positive-controlled phase Ⅰa clinical trial to evaluate the safety and immunogenicity of Haemophilus influenzae type b conjugate vaccine in healthy people aged 1 to 49 years
主要目的:评价Hib结合疫苗在1至49周岁人群中的安全性;
次要目的:1.评价Hib结合疫苗在1至49周岁人群中的安全性;2.评价Hib结合疫苗在1至5周岁人群中的免疫原性;
[Translation] Primary objective: To evaluate the safety of Hib conjugate vaccine in people aged 1 to 49 years;
Secondary objectives: 1. To evaluate the safety of Hib conjugate vaccine in people aged 1 to 49 years; 2. To evaluate the immunogenicity of Hib conjugate vaccine in people aged 1 to 5 years;