Recent studies have shown that SARS‐CoV‐2‐specific CD8+ T cells can be detected in peripheral blood mononuclear cells of COVID‐19 patients,16, 17, 18, 19 suggesting that some SARS‐CoV‐2‐derived peptides can be naturally processed in human cells, presented on HLA class I molecules and induce SARS‐CoV‐2‐specific cytotoxic CD8+ T cells in vivo. Here, CD8A is linked to COVID-19.