ACYW135 Meningococcal Polysaccharide Vaccine Clinical Trial
This study evaluates the safety and immunogenicity of the ACYW135 Meningococcal Polysaccharide Vaccine in population aged 2-50 years old. Subjects will be divided into 3 group according to their age, receiving the test vaccine and the control vaccine at the proportion of 1:1 randomly. Each age group has 400 subjects, 1200 in total.
n/a
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Prevention