The levels of CCL24 and CXCL7 in the CSF and serum of neurosyphilis patients did not differ significantly according to different disease stages (Figure 3A‐C), with the exception of CXCL7 levels in the serum, which differed significantly between meningovascular and parenchymatous neurosyphilis (P = .0441; Figure 3D). Here, CCL24 is linked to neurosyphilis.