Percentage of HLA-B*07:02 subjects making IFN-γ ELISpot responses to 16 B-clade and C-clade-specific HLA-B*07:02-restricted optimal epitopes in B-clade and C-clade-infected subjects. (A) Protein-specific and (B–D) optimal epitope-specific IFN-( ELISpot responses tested in B-clade and C-clade-infected HLA-B*07:02 individuals using a cut-off of 100 spot-forming units per million PBMCs. (E) Comparing magnitudes of protein-specific responses expressed as SFU/million input PBMCs with horizontal lines representing median values. (F) Showing the mean number of epitopes targeted per individual for C-clade and B-clade-infected individuals. Significant differences (p<0.05) by Fisher's exact test (A–C), Mann–Whitney U test (E), and unpaired t-test (F). Individuals coexpressing HLA-B*39:10, B*42:01, B*81:01, and Cw*08:02 were excluded for TL9-p24 analysis as these HLA alleles also restrict TL9-p24.