By electron microscopy, viral particles of any herpesvirus appear as arrays and scattered single particles as shown here in a nucleus of a neuron from the cerebrum from a patient with herpes simplex encephalitis.

• 单纯疱疹病毒性脑炎，电子显微镜显示大脑神经元内的疱疹病毒颗粒成组排列或单个散在分布。