流行性乙型脑炎简称乙脑，是由黄病毒科虫媒病毒——乙脑病毒引起的一种侵害中枢神经系统的急性传染病。常造成患者死亡或留下神经系统后遗症。乙脑的病死率和致残率高，是威胁人群特别是儿童健康的主要传染病之一。夏秋季为发病高峰季节，流行地区分布与媒介蚊虫分布密切相关，我国是乙脑高流行区。

流行性乙型脑炎简称乙脑,By huang arboviruses - je virus families caused by a virus an acute infectious disease of the central nervous system.Often result in death or neurological sequelae.Je high mortality and morbidity,Is one of the main infectious disease threat to people, especially children's health.Fall for onset of peak season,Endemic areas distribution is closely related to the distribution of mosquito,Our country is high je epidemic area.

　　乙脑是一种由蚊类传播的人畜共患疾病，人和许多动物(家畜、家禽和鸟类)感染乙脑病毒后都可成为乙脑的传染源，乙脑主要通过蚊虫叮咬而传播。蚊子不但是乙脑病毒的传播媒介，而且乙脑病毒在蚊体内可经蚊卵传代。蚊与猪是本病毒的主要长期储存宿主和扩散宿主。人群对乙脑病毒普遍易感，感染后多数呈隐性感染，感染后可获得持久免疫力。病例重要集中在10岁以下的儿童，以2-6岁组发病率最高，大多数成人因隐性感染而获得持久免疫力，婴儿可从母体获得抗体而具有保护作用。鉴于此，目前防蚊灭蚊是切断乙脑病毒传播途径，预防乙脑的重要措施之一；预防乙脑的另一重要措施是注射乙脑疫苗，以保护易感人群免受乙脑病毒的感染。王海丽

乙脑是一种由蚊类传播的人畜共患疾病,And many animals(livestock/Poultry and birds)Can be become a je je virus infection after infection,Je is mainly transmitted by mosquito bites.Mosquitoes don't but je virus transmission medium,And je virus in mosquitoes in the body can be represented by the mosquito eggs.Mosquitoes with a pig is the main long-term reservoir and spread of this virus host.People generally for je virus,Most shows recessive infection after infection,Can obtain lasting immunity after infection.Important cases focused on children under the age of 10,In order to group the highest incidence rates 2 to 6 years of age,Most adults gain lasting immunity by the recessive infection,Baby has a protective effect can be obtained from maternal antibodies.In view of this,At present防蚊灭蚊是切断乙脑病毒传播途径,One of the important measures of prevention of je;Prevention is another important measure of je je vaccine injection,To protect vulnerable groups from je virus infection.Wang Haili