IL6 and infection: The concentration of chemokines CxCL1/KC/GRO-α, CxCL2/MIP-2, CCL5/RANTES and cytokines TNF-α, IL-1β, IFN-γ, IL-5, IL-6, IL-9, IL-10, IL-13, IL-17, IL-23 circulating in blood were measured in experimental animals on day 15 post-infection.