In 1911, a deadly epidemic spread through China and threatened to become a pandemic. Its origins appeared to be related to the trade in wild animals, but at the time no one was sure.
원문출처 : https://www.cnn.com/2020/04/18/china/great-manchurian-plague-china-hnk-intl/index.html
원문출처 : https://www.cnn.com/2020/04/18/china/great-manchurian-plague-china-hnk-intl/index.html