Fig. 1: Peripheral blood cell activation profile and inflammation indexes.

a Representative Flow cytometry plots of CD38 + HLA-DR + CD8+ T cells in M-HLH (a) and HM (b) groups. c–h Comparison of CD38 + HLA-DR + CD8+ T cells%, IFNγ, CD14+HLA-DR+ monocyte%, sIL-2R, Ferritin, and LDH in patients of the two groups. LDH lactate dehyrogenase. Independent-samples Mann–Whitney U test was used for the comparison of two groups, Bars represent the median and interquartile range, ※indicates p < 0.05.