translation.en: Vaccines eradicated terrible diseases such as smallpox from the planet and succeeded in significantly reducing mortality due to other diseases such as measles, whooping cough, polio and many more.
translation.zh: 疫苗彻底根除了 像天花那样可怕的疾病 也成功地大大降低了 其他像麻疹、 百日咳、小儿麻痹等疾病 所导致的死亡率