BST2 and viral infectious disease: (22, 23)], and viral restriction factors (Figure 1A, left panel), i.e., APOBEG3G (24), CD317/tetherin/BST2 (25), ILT7 (26), and SamHD1 turns pDC into “viral traps,” e.g., important target cells for viral infection albeit well-equipped and highly specialized on intracellular antiviral defense (Figure 1A, left panel).