因此,尽管病毒和细菌毒素都能杀死海豹,但这些死亡更有可能是细菌毒素造成的。
Although both viruses and bacterial toxins can kill seals, it is more likely that these deaths were the result of the bacterial toxin.
为了对抗寨卡病毒,南卡罗莱纳州开展了空中喷洒灭虫的行动,导致数百万蜜蜂死亡。
Millions of bees have died in South Carolina during aerial insect spraying operations that were carried out to combat the Zika virus.
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.
AIDS is a tremendous problem, deaths from HIV infection and AIDS a tremendous problem in Africa and other parts of the world.
艾滋病是一个巨大的问题,在非洲和世界其他地方,艾滋病毒感染和艾滋病带来的死亡,是一个巨大的问题
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