CD8A and B-cell chronic lymphocytic leukemia: Finally, another recent study focused on the analysis of SARS-CoV-2 specific CD8+ T-cells in CLL and MDS patients after BNTB162b vaccination using DNA-barcoded peptide-MHC multimers covering the full SARS-CoV-2 Spike-protein they were able to map CD8 T-cell recognition sites and identified 59 antigen epitopes.