IFNG and tuberculosis: Nevertheless the median distribution cytokine profile (Fig. 3F) showed a dominance of IL-2- IFN-γ+ in tuberculosis, in comparison to a balance between IL-2+ IFN-γ-, IL-2+ IFN-γ+ and IL-2- IFN-γ+ in past tuberculosis and the highest proportion of IL-2+ IFN-γ- in LTBI.