Notably, we found a significantly higher percentage of CD69+ NK cells in TBM patients (8.34%, 5.64%-11.8%, IQR) compared to HC (2.24%, 1.89%-2.77%, IQR, p = 0.0025) and a slight difference with respect to LTBI individuals (4.38%, 2.23%-5.4%, IQR, p = 0.0737; Figures 2(a) and 2(b)). Here, CD69 is linked to meningeal tuberculosis.