The Antarctic seal is the latest species to be hit by a virulent strain of avian flu as the virus jumps from birds to wild animals around the world, increasing concerns it will adapt to infect mammals and humans more easily.
随着禽流感病毒从鸟类传染给世界各地的野生动物，南极海豹成为最新一个受到其侵袭的物种，人们越来越担心禽流感病毒将更容易感染哺乳动物和人类。
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