The infection also activates the transcription of Cxcl1, Cxcl2 that regulate the influx of PMNs, Cxcl3 that controls migration of monocytes, Cxcl9 the Th1-attracting protein and the interferon-γ - inducible protein-10 (IP-10/Ccxl10). Here, CXCL9 is linked to infection.