As shown in Figures 4A, B, compared with CON, plasma concentrations of IFN-β IL-8 (P < 0.01), IgG, IgA, IL-1β, TNF-α, and IFN-γ (P < 0.05) increased following Salmonella infection (SI). Here, CXCL8 is linked to Salmonella Infections.