This is a randomized, double-blind, and active-controlled Phase Ⅲ bridging clinical trial of 1,400 subjects aged 3 years and above and have completed two or three doses of CoronaVac at least 3 months prior to this study.After enrollment, subjects will be randomly assigned into 2 groups at a ratio of 1:1 to receive one dose of trivalent COVID-19 vaccine or CoronaVac®.
This is a randomized, double-blind, active-controlled phase Ⅲ clinical trial.The purpose of this study is to evaluate the immunogenicity and safety of one booster dose of trivalent COVID-19 vaccine (vero cell), inactivated, prototype strain, delta strain and omicron strain in healthy people aged 3 years old and above and have completed two or three doses of CoronaVac® in Colombia.