歌曲信息

歌曲专辑：VOA慢速英语：健康报道

演唱歌手：英语听力

Influenza Virus歌词

[00:00.00]From VOA Learning English,
[00:02.67]this is the Health Report.
[00:06.19]Infection by the influenza virus may be
[00:10.36]more complex than scientists first thought.
[00:14.57]Researchers in the United States reported recently
[00:19.09]that the virus appears to disarm
[00:22.11]the body's first line of defense against disease.
[00:27.08]When the flu virus attacks,
[00:29.15]the body's natural defenses produce white blood cells.
[00:34.91]The cells make antibodies design to linkup
[00:39.77]to the invading microorganism, neutralize it,
[00:44.49]and in that way, prevent or at least lessen infection.
[00:51.36]The special cells also keep a memory of the invader
[00:56.68]so that the natural defenses can fight it again
[01:01.35]if the individual is re-infected.
[01:05.41]That is the traditional understanding of
[01:08.49]how the body fights the flu virus.
[01:12.82]Now, biologists have discovered how the virus
[01:17.24]can disarm those white blood cells, known as B cells.
[01:22.73]Hidde Ploegh led the team of researchers,
[01:25.93]he is with the Whitehead Institute
[01:29.13]for Biomedical Research in Cambridge, Massachusetts.
[01:33.89]Studies with genetically-bred mice suggest
[01:38.01]the flu virus enters the B cells
[01:41.53]and interferes with the production of antibodies,
[01:46.49]this can kill the cells and the body's first line of defense.
[01:53.31]If true, says Mr Ploegh, the process of infection
[01:58.34]may be more complex than scientists have thought.
[02:03.26]"And so we think that this really provides a new window
[02:06.37]on how the virus goes about its business.
[02:08.53]It may have implications in terms of explaining
[02:11.65]why certain strains of flu cause a nastier version
[02:15.42]of the disease than others," said Ploegh.
[02:16.88]Normally, the frontline antibodies
[02:19.79]occupy lung cells to protect the body
[02:23.85]against future viral invasion through breathing.
[02:28.47]But the flu virus having disabled the antibodies,
[02:33.13]may instead target lung cells.
[02:36.56]In that way, the virus blocks the antibody's ability
[02:41.39]to remember the deadly invader, and labeling the virus
[02:46.91]to launch an attack on the body's defenses.
[02:50.77]"So this suggests that the initial encounter
[02:53.99]of the very type of white blood cell
[02:56.39]that we think defends us against the virus
[02:58.85]may be taken out by this initial wave of infection," said Ploegh.
[03:01.92]By neutralizing an interfering with the body's 'front line troops',
[03:07.85]Mr Ploegh says the flu virus has more time
[03:12.46]to reproduce and establish itself in the cells,
[03:17.49]that keeps the immune system
[03:19.78]from developing a second line of defense.
[03:23.66]A report on how influenza overcomes the body's immune system
[03:28.69]was published in the journal Nature.
[03:32.01]And that's the Health Report from VOA Learning English.
上面是千思维歌单网提供歌曲Influenza Virus的歌词全文和下载地址，Influenza Virus原唱是谁，是谁唱的，是什么歌的等内容。

Influenza Virus评论

Influenza Virus免费下载地址

免费获取全部资源
永久免费
下载地址教程
地址/密码请 点击这里回复 后查看
――――――――新手教程――――――――
点击上面回复进入后→点击下方的微信免密一键登录→回复一下帖子然后刷新即可获取地址。

• 英语听力