Moreover, a persistent dysregulation in immune cell subtypes in COVID-19 convalescents up to 24 weeks post-infection was found [123], and the depletion of naive B and T cell subpopulations and the expansion of PD-1 CD8 memory T cells suggest the persistent conversion of naïve T cells to activated states, resulting in the chronic stimulation of the immune response [124]. Here, CD8A is linked to COVID-19.