SARS-CoV-2(15) COVID-19(15) Activation(6) receptor(6) IFN-γ(6) SARS-CoV-2.(6) Genes(6) COVID-19 patient(6) naïve(5) response(5) CD8(5) Patient(5) Cytokine storm(4) Myeloid-derived suppressor cells (MDSCs)(3) survivor(3) acute respiratory syndrome(3) Effect(3) autologous(3) induce(3) T cells(3) increase(3) Inflammation(3) Vitamin D(3) T cell(3) the SARS-CoV-2(3) peptide(3) vitamin D deficiency(3) CD25(3) Phosphorylation(3) cells(3)