1. Safety:-Adverse Events-Assessment items in electronic health assessment diary2. Antibody durability and Immunogenicity-SARS-CoV-2 serum neutralizing antibody-SARS-CoV-2 S binding antibody-SARS-CoV-2 N binding antibody-Cell-mediated immunity assessment (Confirming whether or not there are antigen-specific T cells / antigen-specific B cells)

1. Safety:-Adverse Events-Assessment items in electronic health assessment diary2. Antibody durability and Immunogenicity-SARS-CoV-2 serum neutralizing antibody-SARS-CoV-2 S binding antibody-SARS-CoV-2 N binding antibody-Cell-mediated immunity assessment (Confirming whether or not there are antigen-specific T cells / antigen-specific B cells)