Figure 3From: Correlation between tuberculin skin test and IGRAs with risk factors for the spread of infection in close contacts with sputum smear positive in pulmonary tuberculosis Number of responder T cells to ESAT-6 (A), CFP-10 (B), ESAT6/CFP10 (C), and IFN-γ released after specific antigens stimulation (D) in more and less than 6 hours of exposition to the index case. Back to article page