而且病毒可能蔓延到非洲国家，这可能会造成灾难，因为那里的贫穷国家的人民健康相对虚弱，而兽医基础设施又相对薄弱。
Furthermore, the potential spread of the virus to African countries could be a disaster, taking the relatively weak human-health and veterinary infrastructures of poor countries into account.
科学家发现在尝试与艾滋病病毒对抗的过程中，病人的免疫系统变得十分虚弱。
Scientists find that patients' immune system becomes severely weakened from trying to fight the AIDS virus.
一年后，当实验结束，病毒浓度依然很低。与此同时，未作处理的猴子们则愈加虚弱，因为他们的免疫系统被病毒耗尽。
After a year, when the trial ended, these concentrations remained low, whereas untreated monkeys became progressively sicker as their immune systems were depleted by the virus.
他同时表示，病毒的一些区域较少发生突变，当这些区域发生突变时，病毒会变得较为“虚弱”，所以我们有可能鉴别并标靶这些区域。
"He also said that virus in some regions fewer mutations, when mutations in these regions, the virus will become more" weak ", so we may have to identify and target these areas."
因为元气虚弱，相关的脏腑组织也会虚弱，就会产生不同的病灶，也就必然会形成孳生不同细菌病毒的温床。
Strength as weak, the relevant organs of the organization will be weak, it will have a different focus, it is bound to form a breeding ground for bacteria breeding ground for the virus.
西尼罗河病毒感染仅导致老年人和身体虚弱者死亡。
However, West Nile virus can cause death in older or weak people.
病毒感染引起的一种急性传染病，患者主要是儿童，症状为皮肤发疹、低烧以及浑身虚弱。
A mild, contagious skin disease of cattle, usually affecting the udder, that is caused by a.
病毒感染引起的一种急性传染病，患者主要是儿童，症状为皮肤发疹、低烧以及浑身虚弱。
A mild, contagious skin disease of cattle, usually affecting the udder, that is caused by a.
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