Vitamin C helps boost the immune system.

维生素c可帮助激发免疫系统。

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It is thought that exposure to allergens - from cats and dogs - could boost the immune system.

这是因为从猫和狗那里接触过敏原，能够增强人们的免疫力。

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Danone has subsequently dropped most of its claims that Activia yoghurts and Actimel drinks boost the immune system.

后来，达能集团撤掉了大部分有关Activia酸奶和Actimel饮料能提高免疫力的广告。

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The first step uses a bit of influenza DNA to get the patient's immune system to begin fighting off the flu, and then the protection is given a "boost" some time later by the second step, which can be either another bit of DNA or a conventional flu vaccine.

VOA: standard.2010.07.21

Now, if I was a person that was designing a vaccine and I noticed that this was the response that it got, that antibodies were produced, they reached some intermediate level, they started to fall, I would say, "Well I haven't stimulated the immune system enough, let me re-boost, let me give another dose of antigen."

现在,如果我正在研究一种疫苗,我注意到机体会对这种疫苗产生应答,也就是会产生抗体,当抗体浓度达到中等水平后,就开始下降,就可以说,疫苗对免疫系统刺激还不足,我需要提高抗原浓度,让我再把剂量再加大一倍

耶鲁公开课 - 生物医学工程探索课程节选

Exercise (intense, but short of inducing chronic exhaustion) and good nutrition boost the immune system.

FORBES: Survival Of The Fittest

The underlying tenet of Goldstein's practice is to boost the immune system and let nature heal itself.

FORBES: Miracle Worker

Other companies working on therapies that boost the immune system against cancer include Bristol-Myers Squibb and GlaxoSmithkline.

FORBES: Dendreon's Agonizingly Slow Start