By this stage the host cell shows characteristic vacuolation and other cytopathic effects .

到此阶段，宿主细胞显示典型的空泡化和其它细胞病理效应。

Histopathology of brain : bilateral , symmetric intracytoplasmic vacuolation of neurons and gray matter neutrophils .

脑组织病理学:神经元和嗜中性粒细胞灰色物质的双侧,对称的内胞浆空泡组织。