Borrelia-positive patients were distinct from viral infections in elevated CRP (Mann–Whitney two-sided, p = 0.030), IL-10 (p = 0.00038), and MIP-1Beta (p = 0.0048) and decreased IP-10 (p = 0.00028), IFN-alpha (p = 0.0022), and MCP-1 (p = 0.00038) (Fig. 3e). Here, CCL2 is linked to viral infectious disease.