In another study, it was shown that plasma exosomes of COVID-19 patients contain double-stranded RNA (dsRNA) of SARS-CoV-2 and are responsible for the production of IL-6, IL-8, and TNF-α by mononuclear cells, particularly in CD4+ T cells, CD8+ T cells, and CD14+ monocytes[124]. The gene discussed is CD8A; the disease is COVID-19.