Flu vaccines work by introducing a killed version of circulating virus strains, which trains the body's immune system to recognize and attack similar invaders in the future.
流感疫苗通过导入一种杀死的流感病毒变种起作用，来训练身体的免疫系统识别这些变种并在将来遇到类似的入侵者时作出反击。
Preliminary research suggests that prostratin may also prevent copies of the purged virus which are circulating in the bloodstream from integrating themselves back into healthy immune cells.
初步研究证明prostratin也可能防止在血液中循环的净化病毒结合成一个整体重新融入健康的免疫细胞。
However, no-one outside of Mexico has yet died, leading to Suggestions that the severity of the cases there may be due to the strain mixing with a second unrelated virus circulating in the community.
然而，墨西哥城外没有人因此而死亡，这可以得出，疫情安全的严重性可能是由于在社区范围办传播的二级的不相联系的病毒和过度的紧张混淆起来。
A seasonal flu in the same H1N1 family as the pandemic virus has been circulating since 1977, but until now it was thought that this seasonal virus did not induce immunity to the pandemic strain.
自从1977年以来与H1N1族相同的季节流感作为大流行病毒一直在传播，但一直到现在为止，人们认为季节流感病毒对大流行病毒株不能产生免疫性。
Laboratory studies have shown that the virus presently circulating in Nigeria is virtually identical to viruses that have caused human cases and deaths elsewhere since the start of this year.
实验室研究表明，目前在尼日利亚传播的病毒与今年以来在其它地方导致人间病例和死亡的病毒实际上是同一种。
Genetic sequencing indicates a virus of Nigerian origin, imported from Kismayo, Somalia; however, it is not possible to determine how long the virus has been circulating in Kenya.
基因排序表明病毒起源于尼日利亚，从索马里基斯马尤输入；但是，无法确定该病毒在肯尼亚已传播多长时间。
Not only are seasonal flu strains circulating but also the H5N1 avian influenza virus, which has killed 258 out of 423 people infected since 2003.
除了季节性流感，H5N1禽流感也是会流通的，自从2003年开始，禽流感已经感染了423人，其中造成258人死亡。
This specific H1N1 virus rapidly circulating around the world, then, is not a new phenomenon but simply a new strain of influenza.
因此尽管是一种新的流感病株，H1N1在世界各地的迅速传播却并非一种新现象。
An H2N2 virus causes the "Asian" flu pandemic, completely displacing the H1N1 viruses that have been circulating in humans since 1918.
H2N2病毒引起“亚洲”流感大流行，完全替换了自1918年以来在人间的传播h1n 1病毒。
The new H1N1 virus rapidly crowded out other circulating influenza viruses and appears to have displaced the older H1N1 virus.
H1N1新病毒迅速挤出其它传播中的流感病毒，看来还取代了早前的H1N1病毒。
GACVS considered that it would be important to examine the possibility that naturally circulating yellow fever virus in endemic regions may account for some of these differences in risk.
在疫区自然传播的黄热病病毒可能导致这些危险性差异，GACVS认为，对这种可能性的研究非常重要。
In areas where the virus is circulating widely in the community, clinicians seeing patients with influenza-like illness should assume that the pandemic virus is the cause.
对于那些该病毒正在社区内广泛传播的地区而言，临床医生见到出现流感样病症的病人，就应将大流行性病毒假定为病因。
Last month’s HPAI outbreak in Thailand’s Pichit province was caused by the same virus strain circulating in the area since 2003/4.
上个月在泰国披集府爆发的高致病性禽流感是由从2003/4年在该地区开始流行的同样病株所引起。
Some currently circulating H5N1 strains are fully resistant to these the M2 inhibitors. However, should a new virus emerge through reassortment, the M2 inhibitors might be effective.
目前流行的一些H5N 1毒株对这些M2抑制剂有完全的耐药性，然而，如果新的病毒通过重组出现，M2抑制剂可能是有效的。
But in general for patients, the agency advises treating based on symptoms and the knowledge that the virus is circulating in a community.
但对一般患者，中心劝告对症治疗并指了解病毒是在社区传播的。
In most previous pandemics, the new virus has totally replaced the previously circulating strains.
过去的几次流感大流行中，流行的新病毒株都完全替代了过去的旧病毒。
Human cases of infection with any influenza virus not currently circulating in human populations.
出现了目前尚未在人群中传播的流感病毒人类感染病例。
Their findings suggest this newly discovered gorilla virus is circulating among people, they reported in the journal Nature Medicine.
他们的发现提示，这新发现的大猩猩病毒在人群中传播，他们在自然医学杂志（the journal Nature Medicine）报告。
Objective To understand geographic distribution of mumps virus genotypes and variation of circulating mumps virus strains in Beijing.
目的了解北京地区流行性腮腺炎病毒流行株基因型分布和变异情况。
In the light of recent animal research, we have become convinced that the vaccine can boost patients' weakening immune system and decrease the amount of virus circulating in the blood.
根据最近的动物研究，我们相信这些疫苗能改善患者正在衰竭的免疫系统并减少在血液中循环的病毒数量。
The viruses that are circulating in Africa and Europe are the ones closest to becoming a human virus.
在非洲和欧洲传播的禽流感病毒是最接近于人流感病毒的。
In French Polynesia, the Zika outbreak was associated with neurological complications at a time when the virus was co-circulating with dengue.
在法属波利尼西亚，在寨卡病毒随登革热传播时，会伴随发生神经并发症。
The swine-origin influenza A (H1N1) virus circulating in Mexico, the United States and Canada, and present in two dozen other countries, is a descendant of the Spanish flu H1N1 virus.
猪流感的病原甲型H1N1流感病毒现在正在墨西哥美国加拿大流行，在其他二十几个国家也有病例出现。
No new influenza virus subtypes have been detected in humans. However, a circulating animal influenza virus subtype poses a substantial risk of human disease.
没有在人类发现流感病毒新变种。但流感病毒在动物间传播对人类致病构成明显威胁。
No new influenza virus subtypes have been detected in humans. However, a circulating animal influenza virus subtype poses a substantial risk of human disease.
没有在人类发现流感病毒新变种。但流感病毒在动物间传播对人类致病构成明显威胁。
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