HLA-A and influenza: Since our constructs included confirmed HLA-A*02:01 CD8 T-cell epitopes, we studied immunogenicity of the recombinant LAIV/SARS-CoV-2 viruses on HLA-A2.1 transgenic mice, however, no significant SARS-CoV-2-specific responses were observed after intranasal immunization, most probably due to the immunodominance of influenza-specific mouse T-cell epitopes.