The preferred quiescently infected neural cells for use in {HEAD ~ this embodiment} are those comprising neurotropic herpes viruses, {TAIL ~ preferably HSV} 1 
The preferred quiescently infected neural cells for use in { HEAD ~ this embodiment } are those comprising neurotropic herpes viruses , { TAIL ~ preferably HSV } 1
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH