流行性乙型脑炎(乙脑)发现于1924年。为了与上世纪初流行于欧洲的嗜睡性脑炎(又称甲型脑炎)相区别,解放后经卫生部定名为流行性乙型脑炎。乙脑的病原体是病毒,是1934年由日本科学家从死于该病患者的脑组织中首先分离到的。因此,也称为日本脑炎病毒。乙脑病毒对外界环境抵抗力较 Japanese encephalitis (JE) was found in 1924. In order to be distinguished from the predatory encephalitis (also known as type A encephalitis) that prevailed in Europe at the beginning of the last century, the Ministry of Health named it encephalitis after its liberation. The etiological agent of JE is a virus that was first isolated in 1934 by Japanese scientists from brain tissue that died of the disease. Therefore, also known as Japanese encephalitis virus. JE virus resistance to the external environment