A study by Kuppalli et al. demonstrated that severe COVID‐19 disease is associated with elevated levels of IL‐6, reduced levels of CD8+ T cells, suppressed Th1 antiviral responses and increased levels of IL‐10, suggesting that cytokine storm together with suppressed Th1 antiviral adaptive responses may lead to severe COVID‐19.80 This evidence concerns the gene CD8A and COVID-19.