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　　SWITZERLAND - Japanese Encephalitis (JE) virus causes serious inflammation of the brain in people and fertility problems in pigs. Mosquitoes were previously the only known transmission route. However, the virus can also be spread from pig to pig by direct contact, and this could enable it to circulate in pigs during the mosquitofree winter season. The JE virus is the main cause of serious encephalitis in people in Asia. The virus is found in large parts of Southeast Asia and is now also widespread in India. It circulates between birds and mosquitoes and between pigs and mosquitoes, and is passed to humans through mosquito bites. In children in particular, infection can lead to acute encephalitis and permanent impairment or even death.

　　流行性乙型腦炎病毒(JE)使人產(chǎn)生嚴(yán)重的腦部炎癥，讓豬產(chǎn)生不育癥狀。早先惟獨(dú)蚊子叮咬是已知的傳播途徑。然而，病毒也可以通過豬與豬直接接觸，這使得乙型腦炎可以在沒有蚊子的冬季傳播。在亞洲乙型腦炎病毒是引起腦炎的主要緣故。病毒最初在東南亞大部分地區(qū)被發(fā)明，現(xiàn)在印度也廣泛傳播。病毒通過鳥與蚊子、豬與蚊子之間傳播，也能通過蚊子叮咬傳染給人類。尤其是兒童，感染可以導(dǎo)致急性腦炎和永久性損傷、甚至死亡。