https://zh.wikipedia.org/zh-my
https://www.cdc.gov.tw/Disease/SubIndex/r-efSTx60KilIEf_MlwknA
https://baike.baidu.com/item
https://www.who.int/zh/news/item/08-05-2020-commemorating-smallpox-eradication-a-legacy-of-hope-for-covid-19-and-other-diseases