This year marks the 100th anniversary of the great influenza pandemic of 1918. Between 50 and 100 million people are thought to have died, representing as much as 5 percent of the world's population. Half a billion people were infected.
원문출처 : http://www.cnn.com/2018/01/29/health/1918-flu-history-partner/index.html
원문출처 : http://www.cnn.com/2018/01/29/health/1918-flu-history-partner/index.html