来自过去大流感爆发病毒株的保守氨基酸标记。
Conserved amino acid markers from past influenza pandemic strains.
这是新浪微博自2009年底上线以来首次爆发病毒事件。
The incident is the first attack on Sina Weibo since its launch at the end of 2009.
感染性支气管炎，也是由细菌引起，细菌性支气管炎常伴发病毒性上呼吸道感染。
Infectious bronchitis may also be caused by bacteria. Often bacterial bronchitis follows a viral upper respiratory infection.
当SV40病毒进入细胞时会产生T抗原，它的作用是触发病毒DNA繁殖。
When SV40 enters a cell, it produces t antigen, which functions to trigger viral DNA replication.
解放军已建成若干信息战单位，开发病毒攻击敌方计算机系统和网络，并研究战术和措施以保护友方计算机系统和网络。
The PLA has established information warfare units to develop viruses to attack enemy computer systems and networks, and tactics and measures to protect friendly computer systems and networks.
他的50万HIV阳性病例的估计是基于对已知病毒发病率的推断。
His estimate of half a million HIV-positive cases was based on an extrapolation of the known incidence of the virus.
它可能为探讨病毒发生病的发病机理和治疗提供新的方法。
It may provide a new methods for probing the pathogenesis and treatment of the virogenetic pathema.
发病后病人会举止疯狂，同时病毒从大脑转移到唾液腺，并将通过唾液传播给新的寄主。
The host's behavior goes awry as the virus moves from the brain to the salivary glands, where it can be transmitted to a new host.
埃及卫生部通报了一起人感染甲型H5N1禽流感病毒新发病例。
The Ministry of Health of Egypt has notified WHO of a new case of human infection with avian influenza a (H5N1) virus.
H1N 1流感病毒引起了2009年流感大流行，该病毒会继续在世界上的一些地区传播，造成不同程度的发病和疫情。
The H1N1 influenza virus, which caused the 2009 pandemic, continues to circulate in some parts of the world, causing variable levels of disease and outbreaks.
那些感染了多年的人中，有一部分人到他们开始发病才知道感染了病毒。
Some of those who have had it for years will have had no idea until they started to get sick.
作为减少由流感病毒引起的发病率和死亡率的一种手段，预防接种仍然十分重要。
Vaccination remains important as a means of reducing the morbidity and mortality caused by influenza viruses.
在这些实验中，猫在直接接种从死亡人间病例中分离的病毒，并在吃了受感染的生鸡肉后发病。
In these experiments, the cats developed disease following direct inoculation of virus isolated from a fatal human case, and following the feeding of infected raw chicken.
在无法获得抗逆转录病毒治疗的情况下，人们寻求其他方法来延缓AIDS的发病或治疗机会感染。
In the absence of antiretroviral treatment, people seek other ways to delay the onset of AIDS, or to treat opportunistic infections.
非洲区域是个例外，随着艾滋病毒的扩散，那里的结核发病率仍在上升。
The exception is the African Region, where TB incidence was still rising, following the spread of HIV.
在非洲，艾滋病毒是1990年以来造成结核发病率上升的唯一最重要的因素。
In Africa, HIV is the single most important factor contributing to the increase in the incidence of TB since 1990.
在特定社群，由于人口很容易感染H5N 1一类病毒，发病率会很迅速地达到最高点。
Because populations will be fully susceptible to an H5N1-like virus, rates of illness could peak fairly rapidly within a given community.
此外，该模型还表明，在艾滋病毒普遍流行的资源匮乏国家，艾滋病毒相关发病率和死亡率也会显著降低。
Additionally, the model suggests that there could be a significant reduction of HIV-related morbidity and mortality in resource-limited countries with generalized HIV epidemics.
现在仍不清楚病毒源自哪里，美国南部和墨西哥均有首发病例。
It is still unclear where the virus originated — after initial cases in both the southern United States and Mexico.
现在仍不清楚病毒源自哪里，美国南部和墨西哥均有首发病例。
It is still unclear where the virus originated — after initial cases in both the southern United States and Mexico.
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