In the adult mouse brain, ependymal and neural stem cells express the Herpes virus entry mediator protein (HVEM) and in vitro studies concerning the infection of such cells indicate reduced neuronal generation rates, as shown by doublecortin (DCX) immunostaining, which was prevented by microglia-derived IL-6 secretion (Chucair-Elliott et al., 2014). Here, DCX is linked to infection.