Figure 2From: Tuberculosis associated with Mycobacterium tuberculosisBeijing and non-Beijing genotypes: a clinical and immunological comparison Plasma cytokine levels. Plasma levels of IFN-γ and IL-18 in pulmonary tuberculosis patients were quantified using ELISA assay. Patients infected with Beijing and non-Beijing strains showed similar levels of IFN-γ (p = 0.994) and IL-18 level (p = 0.341). The bars indicate the log median levels in each group.Back to article page