Objective : Borna disease virus ( BDV ) is a neurotropic nonsegmented negative-stranded RNA virus that caused the illness calling Borna disease ( BD ) .
目的：博尔纳病病毒（Bornadiseasevirus，BDV）是一种嗜神经性、非节段性、负股单链的RNA病毒。
negative-stranded RNA virusnegative-stranded RNA virusnegative-stranded RNA virus