Cytomegalovirus induces low expression of CCR7 and reduces migration of DCs to lymph node, impairing activation of the adaptive response mechanism; these effects have also been observed in infections with the Herpes Simplex (HSV-1), human respiratory syncytial virus (HRSV), human metapneumovírus (HMPV) and measles virus [56,61-63]. Here, CCR7 is linked to infection.