This study investigates the potential of T-cell-mediated immunity in combating SARS-CoV-2, given the concerns about the high mutation rate in the virus's S protein and its potential impact on vaccine efficacy. The prevalent HLA class II alleles in the Indonesian population, namely HLA-DRB1*12:02, HLA-DRB1*15:02, and HLA-DRB1*07:01, play a crucial role in presenting viral peptide antigens to the…