The discovery of artemisinin has helped significantly reduce the mortality rates of malaria patients.

青蒿素的发现极大地降低了疟疾患者的死亡。

This year marks the 50th anniversary of Tu's discovery.

今年是屠呦呦发现青蒿素 50 周年。

Artemisinin is a drug that has sharply lowered the number of people who die from malaria.

青蒿素是一种能够在很大程度上降低疟疾死亡人数的。

Parasites in South-East Asia, for example, seem to be developing resistance to artemisinin-based treatments.

比如，东南亚的寄生虫似乎对基于青蒿素的治疗起了抗性。

Basically, they were making an extract of qinghao without heating it at all.

也就是说，他们在制作青蒿提取时不进行加热。

Several partners are now considering an innovative funding facility for making ACTs more affordable.

一些合作伙伴目前正在考虑通过新的筹资机制，使以青蒿素为基础的联合疗法更为便宜。

Tu's research led to the manmade drug artemisinin, a drug now widely used to treat malaria.

屠呦呦的研究引发了人造青蒿素，这种现已广泛用于治疗疟疾。

Tu found it effective and tried to extract the qinghaosu from it in order to make a drug.

屠呦呦发现这种疗法有效，便试图以此提取青蒿素来制造。

It turned out that qinghaosu was safe and all patients in the test recovered.

结果表明青蒿素是安全的，所有接受测试的患者都康复了。

She used a low-temperature method to extract the qinghaosu and finally succeeded in 1972.

屠呦呦用低温法提取青蒿素，并最终于 1972 年成功。

Now, artemisinin can be toxic to human cells, too, for the same reason.

不过，青蒿素也会对人体细胞产生毒性，也是出于同样的原因。

Artemisinin is the most effective Malaria treatment ever developed. But across Southeast Asia resistance to it is a growing concern.

青蒿素是开发出来的治疗疟疾的最有效，但整个东南亚地区寄生虫对这种的抗性令人担忧。

Even with large amounts of qinghao extract produced, however, they still faced another problem.

然而，即便是大量的青蒿提取，他们也面临着另一个问题。

And when artemisinin encounters hemozoin, the two compounds react to create unstable atoms known as free radicals.

当青蒿素遇到疟原虫色素时，这两种化合会发生反应，产生被称为自由基的不稳定原子。

A fancy banquet was served with artichokes, fish, chicken, and wine.

宴会上提供了一道精美的菜肴, 包括青蒿、鱼、鸡肉和葡萄酒。

She was, of course, recognized for her discovery of artemisinin, the powerful medicine used to treat malaria.

当然，她因发现用于治疗疟疾的强效青蒿素而受到认可。

Tu Youyou is a Chinese scientist who managed to extract artemisinin from a Chinese herb.

屠呦呦是一位中国科学家， 他成功地从中草中提取了青蒿素。

As it turned out, the key to this life-saving cure was an active compound from the wormwood plant called artemisinin.

事证明，这种救命疗法的关键是一种来自艾草植的活性化合，叫做青蒿素。

In November 1972, through trial and error, they successfully discovered qinghaosu-the most effective part of the qinghao extract.

1972年11月， 经过反复试验，他们成功地发现了青蒿素——青蒿提取中最有效的部分。

But luckily, artemisinin reacts more readily with hemozoin, than it does with the iron in our cells.

但幸运的是，青蒿素与疟原虫色素的反应比与我们细胞中的铁反应更容易。