The WHO's pandemic levels are based on how widely a novel flu virus is spreading.
世卫组织的大流行分级以新病毒传播的广泛程度为基础。
The European Union's health commissioner has suggested the virus be renamed "novel flu."
欧洲联盟卫生专员建议该病毒被改名为新的禽流感。
The European commission is calling it the "novel flu virus", which as a description is accurate but will also become redundant as time passes.
欧盟委员会将这种病毒命名为“新型流感病毒”，虽然描述得很准确，但随着时间的推移这种叫法也难免被淘汰。
They got their first shot to test the vaccine about two months ago, and, after 21 days, more than 85 percent showed an immunity to this novel flu strain.
约两个月前，他们接受了第一次甲流疫苗接种；21天后，超过85%的志愿者对这种新型流感病毒菌株显示出了免疫力。
Minnesota is the nation's third-largest pig farming state, and its health experts said Wednesday they would be calling the illness "H1N1 novel flu".
明尼苏达州是美国第三大猪肉养殖州，其卫生专家指出，周三他们将开始称呼该疾病为“H1N1新型流感”。
But who officials have insisted that a flu pandemic is defined by how fast a novel flu virus spreads, and who it affects, not necessarily how severe it is.
但世卫组织官员坚持认为一种流感大流行的定义应该由新流感病毒的传播速度和影像对象来决定，而其严重程度并非必须考虑。
The project should help, too, to catch new strains presenting novel symptoms, such as the unexpected diarrhoea that was associated with swine flu.
计划也能帮助人们发现新病毒呈现出的新症状，例如与猪流感有关的让人意想不到的腹泻。
The authors theorized that exposure to post-1918 H1N1 human flu viruses had primed the oldest subjects' immune system to recognize the novel H1N1.
作者从理论上推测，老年受试者具有1918后h1n 1人流感病毒的暴露史，使得这些老年人的免疫系统能够识别新型H1N1病毒。
Look no further than last year's swine flu pandemic for an example of how a novel pathgen spread rapidly around the world.
远的不说，去年的猪流感大爆发就是一个有力的佐证，一个新的病毒，为何能在一夜之间席卷全球？
Bird and swine flu might have receded for now, but the top candidate for a global pandemic remains: a novel strain of flu.
禽流感和猪流感可能暂时退去了，但全球范围传染病爆发的头号候选依然是：新的流感株。
Bird and swine flu might have receded for now, but the top candidate for a global pandemic remains: a novel strain of flu.
禽流感和猪流感可能暂时退去了，但全球范围传染病爆发的头号候选依然是：新的流感株。
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