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The hope is to develop a vaccine that could give lifelong protection against a majority of flu viruses, including bird flu.
VOA: special.2009.03.04
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You've got the flu, you've got influenza in your upper respiratory tract, your cells are making more influenza.
你就此得了流感,你得了上呼吸道流感,你的细胞正在制造更多流感病毒
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I think I'm catching the flu.
可能我感冒了。
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Federal health officials said they expect a vaccine for the H1N1 flu to be available by the middle of October.
VOA: special.2009.08.13
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If you get a flu that affects your intestinal system then those viruses are infecting gut cells.
而影响肠道系统的流感病毒,就可以感染肠道细胞
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W.H.O.special adviser Keiji Fukuda reported earlier this month that the virus has acted in some ways like seasonal flu.
VOA: special.2009.11.24
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What happens is suppose you have the flu and you get very nauseous and then at the same point you eat some sashimi for the first time.
假设你得了流感，感觉非常恶心,与此同时，你又第一次吃了生鱼片。
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Right now,as schools prepare to begin a new year, one concern is the H1N1 virus, often called swine flu.
VOA: special.2009.08.13
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Viruses, you know about viruses; variola, we're going to talk about next week which causes smallpox, influenza, which causes the flu and HIV of course which cause AIDS are some examples.
病毒 你们都知道病毒,像天花病毒,我们下周会讲的引起天花的病毒,还有引起流感的流感病毒,引起艾滋病的人类免疫缺陷病毒等等
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In the United States, cases of suspected influenza are at higher numbers than usual this early in the flu season.
VOA: special.2009.11.24
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I didn't have the flu at the time but I became violently ill.
我那会并没得流感，但却病的很重。
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W.H.O.special adviser Keiji Fukuda said last week that the virus has continued to act in some ways like seasonal flu.
VOA: special.2009.11.11
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But last week, two teams working independently reported a discovery that could help lead to a universal flu vaccine.
VOA: special.2009.03.04
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You could be placed in medical isolation if someone you traveled with on a plane is suspected of having swine flu.
VOA: special.2009.07.14
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These urge local officials to balance to risk of flu in their communities with the problems that school dismissals could cause.
VOA: special.2009.08.13
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They were barred from leaving their rooms because someone on their flight was suspected of having the flu.
VOA: special.2009.07.14
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As of Tuesday, seventy-three countries had reported more than twenty-six thousand cases of the new H1N1 flu virus.
VOA: special.2009.06.10
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Viruses change,or mutate, so flu vaccines must be reformulated each year to target the most common threats.
VOA: special.2009.03.04
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But public health officials point out that flu viruses can return more aggressively after a few months.
VOA: special.2009.05.06
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And,unlike seasonal flu, younger people have suffered many of the serious cases and deaths from the virus.
VOA: special.2009.11.24
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Since April,more than one thousand deaths have been reported from the H1N1 virus, commonly called swine flu.
VOA: special.2009.08.05
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But the new H1N1 flu has been affecting a younger age group than seasonal flu epidemics.
VOA: special.2009.08.05
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The United States declared a public health emergency to permit the use of federal money and the use of flu medicines in federal storage.
VOA: special.2009.04.29
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But so far the virus has not shown itself to be more severe than seasonal flu.
VOA: special.2009.08.05
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The H1N1 flu virus that has spread around the world is especially risky for pregnant women.
VOA: special.2009.08.05
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An unusual number of flu cases have been found in young people who were otherwise healthy.
VOA: special.2009.06.10
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The most common seasonal flu virus found in the United States this year is type A(H1N1).
VOA: special.2009.03.04
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And,unlike seasonal flu, younger people have suffered many of the serious cases and deaths from H1N1.
VOA: special.2009.11.11
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Doctor Fry says it is better to prevent the flu than to have to treat it.
VOA: special.2009.03.04
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Doctor Fukuda, the agency's top flu expert, says the virus continues to spread in North America.
VOA: special.2009.06.10
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