Rather, hierarchies of YFV/HLA-C*03:04-NS2A4−13-, HIV/HLA-C*03:04-Gag296−304- and HCV/HLA-C*03:04-Core136−144-tetramers+ KIR2DL2/3+ NK cells in these different infections and following vaccination were determined by the affinity of KIR2DL2/3 to the respective HLA-C*03:04/peptide complex. Here, HLA-C is linked to infection.