Figure 2From: T-cell and serological responses to Erp, an exported Mycobacterium tuberculosisprotein, in tuberculosis patients and healthy individualsNumbers of antigen-specific T cells in the 4 groups:non BCG-vaccinated controls (BCG-), BCG+ subjects without infection and with latent TB infection (LTBI), and in TB patients (TB), measured by ELISpot IFN-γ assay after stimulation with PPD, Erp, ESAT-6 and Ag85B. A logarithmic scale is used and horizontal bars indicate positive values.Back to article page