CCL5 and bacterial infectious disease: In the case of activation of platelets as a result of a bacterial infection, these cells, among others, affect the CXCL4 (PF-4) and CCL5 (RANTES) chemokine receptors on the surface of the vascular endothelium, induce "extravasation" of leukocytes (29, 30, 38, 62, 81).