“病毒性脑炎”是一种独立的疾病,为散发性,无持定的发病季节,病前多有感冒或呼吸道感染的症状。根据国内各地报告,考虑为病毒所致,系何种病毒,至今尚未分离出来。另外有的学者从病理形态上观察到除脑组织发现水肿、脱髓鞘、软化等变性坏死外,还可见到病变早期有核细胞、淋巴细胞的浸润,这些细胞是与胞胞免疫有关。又在后来的病变中观察 “Viral encephalitis” is an independent disease, sporadic, non-defined onset of the season, the symptoms of more common cold or respiratory tract infection. According to reports from all over the country, consider what is caused by the virus, what kind of virus, has not yet been separated. In addition, some scholars observed pathological changes in addition to brain tissue found that edema, demyelination, softening and other degeneration and necrosis, but also can see the early lesions of the nucleated cells, lymphocyte infiltration, these cells are related to cellular immunity. In later lesions observed