Definition of immunotype 3
To define COVID-19 patients with low or absent immune responses, classified as immunotype 3, the intersection of the bottom 50% of 5 different flow parameters was used: PB as % of B cells, KI67+ as % of non-naïve CD4 T cells, KI67+ as % of non-naïve CD8 T cells, HLA-DR+CD38+ as % of non-naïve CD4 T cells, HLA-DR+CD38+ as % of non-naïve CD8 T cells—graphically displayed in fig. S10.