Randomized phase 1/2 trial: Safety and immunogenicity of an inactivated COVID-19 vaccine, BBIBP-CorV, in children and adolescents aged 3–17 years. 23 Sep, 2021 | 10:16h | UTC Safety and immunogenicity of an inactivated COVID-19 vaccine, BBIBP-CorV, in people younger than 18 years: a randomised, double-blind, controlled, phase 1/2 trial – The Lancet Infectious Diseases Related: Phase 1/2 RCT: CoronaVac is well tolerated and safe and induces strong humoral responses in children and adolescents aged 3–17 years.