"That it is practically impossible to avoid coming into contact with them," says Frederick vom Saal, a biologist at the University of Missouri.
“避免与它们接触是基本不可能的。”密苏里大学的生物学家 Frederick vom Saal 说。
As conservation areas become smaller, lions are increasingly coming into contact with human populations, which are expanding to the boundaries of these protected areas.
随着保护区变得越来越小以及人类的活动扩张到了这些保护区的边界，狮子跟人类的接触也就越来越多。
The spread may also be caused by coming into contact with something an infected person has touched and then touching your mouth, nose or eyes.
这类传播也可能是由于接触到受感染者触摸过的东西，后又接触口鼻或双眼造成的。
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