Fig. 3From: Levels of vitamin D-associated cytokines distinguish between active and latent tuberculosis following a tuberculosis outbreakIL-15, IL-32, and IL-1β levels measured via the QFT-GIT assay in those with active TB and LTBI. TB-nil: M. tuberculosis antigen-dependent response as measured by the difference in cytokine levels between the nil and TB antigen-coated tubes. The horizontal lines indicate median valuesBack to article page