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森林脑炎是由蜱为传播媒介引起的森林地区自然疫源性疾病，又称为蜱传脑炎或壁虱脑炎，春秋脑炎等。病毒在啮齿动物和蜱之间循环传播，人被带有病毒的蜱叮咬后即可能患病。多发生于５～７月春夏季节，我国主要流行于东北和西北的原始森林地区，多感染采伐工人或与森林作业有关?
Forest encephalitis is a natural foci disease caused by ticks for the forest area, also known as tick-borne encephalitis or tick encephalitis, spring encephalitis and so on. The virus circulates between rodents and ticks, and people can become sick when ticked by a virus-bearing tick. Occurred in May to July spring and summer seasons, China is mainly popular in the northeast and northwest of the virgin forest areas, more infected felling workers or with the forest operations?