流行性乙型脑炎(简称乙脑),由虫媒病毒B组中一种披盖病毒(Togavirus)所引起。本病起病急,病情复杂多变,季节性强。重症者病死率高,部分留有神经精神后遗症而致终身残疾。我省近几年来乙脑病死率在常见急性传染病中占第三位,约在7％左右。因此,提高本病治愈率,降低致残率,仍是当前值得研讨的课题。 Japanese encephalitis (encephalitis) is caused by a Togavirus in group B of the Arbovirus. The disease onset acute, complex and volatile condition, seasonal strong. Severe cases of high mortality, some neurological and mental retardation caused by life-long disabilities. In recent years, the mortality of Japanese encephalitis in our province ranks third in the common acute infectious diseases, about 7%. Therefore, to improve the cure rate of this disease, reduce the disability rate, is still the subject of discussion.