Addison et al (53) detected the expression of CXCR2 using a CXCR2 antibody in human microvascular endothelial cells and confirmed that the chemotaxis of ELR+CXC chemokine-mediated microvascular endothelial cell was obstructed, and was sensitive to pertussis toxins (53). Here, CXCR2 is linked to pertussis.