Interestingly, after PPD stimulation, the granulysin levels were significantly correlated with granzyme-B in TB (Figure 3e) and HIV/TB coinfection, indicating an inverse correlation (Figure 3f), while upon H37Ra stimulation, non-significant correlations were found in both TB (Figure 3g) and HIV/TB coinfection (Figure 3h). Here, GNLY is linked to tuberculosis.