TNF and staphylococcus aureus infection: In total, 12 significant signaling pathways (p < 0.05), including cytokine-cytokine receptor interaction, intestinal immune network for IgA production, chemokine signaling pathway, T-cell receptor signaling pathway, NF-kappa B signaling pathway, JAK-STAT signaling pathway, staphylococcus aureus infection, Toll-like receptor signaling pathway, TNF signaling pathway, NOD-like receptor signaling pathway, B-cell receptor signaling pathway, and RIG-I-like receptor signaling pathway, were identified in the red co-expression module (Supplementary Table 4).