CXCL8 and tuberculosis: Neutrophils are found in abundance in the sputum of tuberculosis (TB) patients and are persistently recruited to sites of chronic mycobacterial infection.20,21 CXCL8 is a chemotactic cytokine known for its ability to be a strong neutrophil chemoattractant, but is also chemotactic for monocytes and T-cells.22,23 Augmented CXCL8 levels are found in plasma from TB patients and in bronchoalveolar lavage fluids,24,25 and this chemokine was shown to enhance neutrophil killing of Mycobacterium tuberculosis.