The expression level reported for IL8 and TNF-α in E. coli induced-mastitis in bovine mammary epithelial cells (BMECs) was much higher than for S. aureus, which is due to the weak Lipoteichoic acid (LTA) induction of TNF-α, or inactivation of NF-κB signaling [73]. The gene discussed is CXCL8; the disease is mastitis.