China stopped the disease by ordering people in villages to use this kind of salt.

中国通过要求村民使用这种盐来阻止丝虫病。

So heartworm disease. What is it?

心丝虫病这是什么病？

But in that era, there was so much heartworm disease.

但在那个年代，心丝虫病遍。

For example, last year China and Egypt announced the elimination of lymphatic filariasis, a disease that currently disables some 40 million people.

例如，去年中国埃及宣布消灭淋巴丝虫病，这一疾病使约四千万人成为残疾。

Filariasis happens when one of these nematodes gets in the lymphatic system and causes a bit of fibrosis, which creates a physical blockage that obstructs the normal flow of lymph.

当这些线虫进入淋巴系统，并引起轻微的纤维化后，就会导致丝虫病，进而造成物理性的阻塞，阻碍淋巴的正流动。

One of the most common global causes of lymphedema is filariasis, an infection with nematode parasites, which are tiny worms; the most common species are: Wuchereria bancrofti, Brugia malayi, and Brugia timori.

丝虫病是淋巴水肿在全球范围内最遍的病因，为线虫类寄生虫的感染所致；最见的物种有班氏吴策线虫、马来布鲁丝虫与帝汶布鲁丝虫。