CD8A and hemorrhagic fever with renal syndrome: We focused on the eight HTNV GP nonapeptides that exhibited a high-binding affinity to the HLA-A*0201 molecules, and utilized them to synthesize peptide/HLA-A*0201 tetramer complexes to examine whether the eight nonapeptides could be recognized by the TCRs of CD8+ T cells in HLA-A*02+ patients with HFRS.