<prompt> True abour Herpes virusHSV 1 causes encephalitisEBV affectsCMV is always symptomaticHerpes zoster is not activated  <response>: HSV encephalitis though rare is most common sporadic acute viral encephalitis in most pas of the world. REF:ANATHANARAYAN AND PANIKERS TEXTBOOK OF MICROBIOLOGY 8TH EDITION PAGE NO:469 