IFNG and infection: On the other hand, CD4+CD44+IFN-γ+IL-17+IL-2+ T-cells (R = −0.7133, p < 0.0001) and CD4+CD44+IFN-γ+TNF-α+IL-2+ T-cells (R = −0.6845, p < 0.0001) showed correlation with bacterial load only post-infection.