1968年在新疆巴楚县阿克沙克马拉勒地区的西衣提力克，久甫库库勒等荒漠牧场中对绵羊和山羊进行了新疆出血热病毒自然感染的调查。
In April 1968 a field survey was carried out in the pastureland of Xiyetlik and Jiupkuikuil near Aksakmaral of Bachu County, Xinjiang for virus isolation from sheep and goat.
同时，由于自然选择更倾向于选择那些能够感染宿主但不致其死亡的病毒，这种致命病毒便随着宿主的死亡而消失。
Meanwhile, the deadliest strains of the virus perished with their hosts as natural selection favored strains that could infect hosts but not kill them.
作为对病毒感染自然防御的部分，人类细胞的蛋白质会锁住dsRNA，引发级联反应，以阻止病毒的自我复制。
As part of their natural defenses against viral infection, human cells have proteins that latch onto dsRNA, setting off a cascade of reactions that prevents the virus from replicating itself.
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