Ragweed is a common allergen, especially during the fall.

豚草是一种常见的过原，秋天时尤为常见。

Typically, the best thing for allergic rhinitis is to simply avoid the triggering allergen if possible.

一般来说，预防过炎发作的最好法就是尽可能地避免接触过原。

It traps dirt and germs, it keeps water out, and it collects bacteria and other dusty allergens and irritants.

它能够捕获灰尘和细菌，把水挡在外面，收集细菌和其他尘土飞扬的过原和刺激物。

Or mouth guards or airborne allergens or any of your other weird afflictions!

或者牙齿保持器和气传过原或任何你其他的怪毛病了！

Our method here has allowed us to create a barrier for dust mites and allergens.

我们的解决法是为尘螨和过源制造障碍。

Interestingly, there's evidence that early exposure to allergens might protect against type 1 hypersensitivity.

有趣的是，有研究表明：早期的过原暴露将降低I型超反应的发生率。

For one thing, warmer temperatures are making the growing season for some allergen producers longer.

其一，气候变暖使产生过原植物的生长季节变长。

I don't want to go back out there, grizz! It's cold and full of outdoor allergens!

我不想再回到原来的地，棕熊！很冷，而且到处是室外过原！

When we are first exposed to an allergen, we don't have much of a reaction… on the outside.

当我们第一次接触过原时，我们没有太多的反应… … 在身体外部是这样。

France's DBV Technologies is researching skin-based treatments as another way to help the body tolerate allergens like peanuts.

法国的DBV科技公司正在研究一种基于皮肤的治疗法，作为帮助人体耐受花生等过原的另一种法。

When other scientific writers report on the effects of climate change on allergens, they often use Ziska's research.

其他科学作家在撰写有关气候变化对过影响的报告时，通常会引用杰斯卡的研究。

Being exposed to an allergen as a baby makes you less likely to actually develop an allergy to it.

当婴儿时期暴露于某一过原时，让你较不会对它产生过。

This reflex likely prompted our outdoor-dwelling ancestors to remove parasitic threats and other irritating things like thorns and allergens.

这种反射可能促使我们居住在户外的祖先消除寄生虫威胁和其他刺激的东西，如荆棘和过原。

For the past 20 years, he has been studying the effects of climate change on allergens.

过去20年来，他一直在研究气候变化对过原的影响。

Well, soya is a common allergen, and according to foodallergy.

好吧，大豆是一种常见的过原，并且根据食物过。

In asthma there is often an excessive reaction from type 2 helper cells or Th2 cells against specific allergens.

在哮喘中，2型辅助细胞或Th2细胞，会对特定过原反应过度。

This gradually boosts tolerance to the allergen by reducing the immune system's tendency to produce IgE each time.

这种治疗法通过逐步抑制免疫系统产生IgE型抗体来提高机体对过原的耐受。

It's cold and full of outdoor allergens!

很冷 而且到处是室外过原！

Prolonged exposure to an allergen with minimal symptoms.

Chase: 长时间暴露于过原, 症状轻微。

Well, prolonged exposure to an allergen with minimal symptoms.

最低限度的长时间的暴露在过物里。