The immature neutrophil has a nonsegmented nucleus in shape of a horseshoe . 很幼稚的嗜中性粒细胞的核呈马蹄形,不分叶。
2.
Objective : borna disease virus ( bdv ) is a neurotropic nonsegmented negative - stranded rna virus that caused the illness calling borna disease ( bd ) . the illness is a nervous syndrome characterized by profound behavirol and consciousness abnormalities as well as encephalitis 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。