BST2 and infection: The increased susceptibility of STING deficient animals to HSV-1 neuroinvasion may be due, at least in part, to a decreased expression of the ISG tetherin [also known as bone marrow stromal antigen 2 (BST2)], as these animals exhibit decreased expression of this ISG (amongst others) during infection (Royer and Carr, 2016), and tetherin depletion has been shown to increase HSV1 titers in the trigeminal ganglion (Royer and Carr, 2016).