Fig 3.

CD1d expression levels in the peripheral blood samples of HCs, LTBI subjects, EPTB patients, and PTB patients. Freshly isolated PBMCs from 17 age- and sex-matched HCs, 11 LTBI subjects, 9 patients with EPTB, and 17 patients with PTB were stained with PE-conjugated anti-CD1d, FITC-conjugated anti-CD14, and PerCP-conjugated anti-CD3 MAbs and analyzed by flow cytometry. Symbols represent subjects, and horizontal lines are median values. (A and B) Percentages of CD1d⁺ cells; (C and D) MFIs of CD1d. P values were determined by Mann-Whitney U test. *, P < 0.05; **, P < 0.01; ***, P < 0.001.