To Evaluate Safety & Immunogenicity of DelNS1-2019-nCoV-RBD-OPT1 for COVID-19 in Healthy Adults Received 2 Doses of BNT162b2
Conditions
Interventions
- BIOLOGICAL: DelNS1-2019-nCoV-RBD-OPT1
- BIOLOGICAL: Matching placebo
Sponsor
The University of Hong Kong