Figure 4From: Identification of a human immunodominant T-cell epitope of mycobacterium tuberculosis antigen PPE44IFN-γ secretion by PBMC from PPD- (A), PPD+ (B) and BCG-vaccinated (C) healthy donors and from patients with active TB (D) in the presence of p1L, p18L, PPD and ESAT-6, as determined by ICC flow cytometry. Results are expressed as in Fig. 1B.Back to article page