Circulating angiogenic factors of the vascular endothelial growth factor family are important biomarkers of disease severity in pulmonary tuberculosis (PTB).
Three unstimulated biomarkers (IL-8<sub>[Nil]</sub>, IL-13<sub>[Nil]</sub>, and VEGF<sub>[Nil]</sub>) and 5 Mtb-specific biomarkers (IFN-γ, IL-2, IL-3, IP-10, and VEGF) were significantly different between active TB and non-active TB groups.