HLA-A and influenza: We selected three highly conserved influenza epitopes specific for HLA-A*0201, the most abundant HLA allele in the Caucasian population, based on their varying binding affinities and dominance in influenza A virus infection: the highly dominant GILGFVFTL (M158-66), the less dominant FMYSDFHFI (PA46-54) and the low affinity subdominant NMLSTVLGV (PB1413-421) epitopes[33].