Analysis of information sources in references of the Wikipedia article "Đại dịch cúm 1957–1958" in Vietnamese language version.
Perhaps a better parallel is the flu pandemic of 1957 and ’58, which originated in East Asia and killed at least 1 million people, including an estimated 116,000 in the U.S. In the second half of 1957, the Dow fell about 15 percent. "Other things happened over that time period" too, Wald notes, but "at least there was no world war."