translation.en: When we had almost eradicated smallpox, it came back again, because the company town of Tatanagar drew laborers, who could come there and get employment.
translation.zh: 当我们马上就要消灭天花的时候，它又重新猖獗起来 原因在于 Tatanagar 镇吸引了大批的劳工 他们来到那里寻找工作