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流行性乙型腦炎首先于1871年在日本發現,故又称日本乙型腦炎,它是一种严重的烈性傳染病。病原通过主要的傳染媒介——伊蚊和庫蚊——侵入人体,引起腦部的炎性变化。我国根据文献記載,1921年北京曾有小流行;近年来,几乎每年夏秋之交,均有發病报告,死亡率很高,患病者以兒童居多。病原:本病的病原是一种嗜神經性乙型腦炎病毒,長約15—22毫微米。小白鼠接种这种病毒后,均能發病,在恢复期患者的血清內,可以查出特異性抗体,它能中和病毒。
Japanese encephalitis was first discovered in Japan in 1871, it is also called Japanese encephalitis, which is a serious potent infectious disease. Pathogens invade the body through the major vectors - Aedes mosquito and Culex pipiens - causing inflammatory changes in the brain. According to the records of our country, there was a small epidemic in Beijing in 1921; in recent years, almost every year at the turn of the summer and autumn, there have been reports of morbidity and the mortality rate is very high. Most of the patients are children. Pathogen: The pathogen of this disease is a neurotropic encephalitis virus, about 15-22 nm in length. After the mouse inoculated with this virus can be disease, recovery of patients in the serum, you can detect specific antibodies, it can neutralize the virus.