Everywhere there's pellagra and hookworm and anemia.

到处都是糙皮病、钩虫和贫血。

Members of the first group developed pellagra. The second group did not.

第一组的成员开发了糙皮病。 第二组没有。

He even swallowed pills that contained skin from pellagra patients.

他甚至吞下了含有糙皮病患者皮肤的药片。

Later, the doctor discovered that a small amount of dried brewer's yeast each day could prevent pellagra.

后来，医生发现每天少量的干啤酒酵母可以预防糙皮病。

Several years later, researchers discovered the exact cause of pellagra: a lack of the B vitamin known as niacin.

几年后，研究人员发现了糙皮病的确切原因：缺乏称为烟酸的 B 族维生素。

He also took liquid from the nose and throat of a pellagra patient and put them into his own nose and throat.

他还从一名糙皮病患者的鼻子和喉咙里取出液体， 放到自己的鼻子和喉咙里。

In nineteen twelve, he began to study a skin disease that was killing thousands of people in the South. The disease was pellagra.

19 岁 12 岁， 他开始研究一种导致南方数千人死亡的皮肤病。 这种疾病是糙皮病。

He had survived pellagra in Persia, scurvy in the Malayan archipelago, leprosy in Alexandria, beriberi in Japan, bubonic plague in Madagascar, an earthquake in Sicily, and a disastrous shipwreck in the Strait of Magellan.

他在波斯患过癞病，在马来亚群岛患过坏血病，在亚历山大患过麻疯病，在日本患过脚气病，在马达加斯加患过淋巴腺鼠疫，在西西里碰到过地震，在麦哲伦海峡遇到过牺牲惨重的轮船失事。