… Our results confirmed a functional exhaustion of type I (NK cells and DCs) and type II IFN (T
cells) production in moderate and severe patients traducing an evasion of both innate and …

… in COVID-19 patients than those in HCs. Consistent with these findings, COVID-19 patients
also … results suggest the functional exhaustion of cytotoxic lymphocytes in COVID-19 patients. …

… in the level of exhaustion modules, including PD-1, CTLA-4, and TIGIT, and functional
modules, … In conclusion, our study identified potential immunological risk factors for COVID-19 …

… Taken together, we conclude that T cells are decreased and exhausted in patients with
COVID-19. Cytokines such as IL-10, IL-6, and TNF-α might be involved in T cell reduction. Thus, …

… The cytotoxic CD8 + T cells in adaptive immune responses demonstrated functional exhaustion
through upregulation of exhaustion markers. In this regard, humoral immune responses …

… CD8 + T cells in the respiratory tract are exhausted or functional in patients with COVID-19. …
T cells and clarify whether CD8 + T cells are truly exhausted during the course of COVID-19. …

… COVID-19. However, little is known about lymphocyte subsets and the immune response of
patients with COVID-19 … , and lymphocyte subsets in the cases with severe form of COVID-19. …

… -activation and exhaustion of innate and adaptive immune cells in COVID-19, which …
exhausted T cells isolated from COVID-19 patients restored T cell functional response to COVID-19 […

… Conclusions: The functional exhaustion and other subset alteration of NK and T cells
may contribute to the progression and improve the prognosis of COVID-19. Surveillance of …

… Still, recent pieces of evidence indicated that the level of circulating T cells is reduced, and
their function is impaired in patients suffering from COVID-19 and especially in those admitted …