S100A8 and meningeal tuberculosis: Neutrophil counts and S100A8/A9 distinguished culture-positive patients with TBM-non-IRIS from patients with TBM-IRIS; neutrophils differentiated them at baseline (median [IQR], 3 [0–14] vs 38 [11–117] cells × 106/L; P = .02) and 2 weeks after ART initiation (2 [0–11] vs 52 [17–244] cells × 106/L; P = .003), and S100A8/A9 differentiated them 2 weeks after ART (15 346 [0–19 152] vs 33 500 [27 000–48 000] pg/mL; P = .001).