流行性乙型脑炎是藉蚊子传播的一种季节性的全身传染病。机体对病毒的反应是周身感染、中枢神经系统及脑膜的炎性变化引起的症候。症状典型的流行性乙型脑炎:流行性乙型脑炎的临床经过可分二阶段,起病后1—2天有周身感染的症状,以后逐渐出现脑症状,其经过约为2—5天(图1)。 Japanese encephalitis is a seasonal systemic infection transmitted by mosquitoes. The body’s response to the virus is a systemic infection, central nervous system and meningeal inflammatory changes caused by the syndrome. Symptoms Typical Japanese encephalitis: The clinical course of Japanese encephalitis can be divided into two phases, 1-2 days after onset of symptoms of infection throughout the body, and later gradually appear brain symptoms, which after about 2-5 Day (Figure 1).