"The Spanish flu pandemic of 1918, the deadliest in history, infected an estimated 500 million people worldwide—about one-third of the planet’s population—and killed an estimated 20 million to 50 million victims, including some 675,000 Americans."
Influenza 1918 - American Experience PBS
https://www.youtube.com/watch?v=VCFJPDqKPgc
1918 Spanish Flu historical documentary | Swine Flu Pandemic | Deadly plague of 1918
https://www.youtube.com/watch?v=UDY5COg2P2c
1918 influenza pandemic survivor interview: Mrs. Edna Boone, interviewed 2008
https://www.youtube.com/watch?v=7k20VFZeLKY
Dr. Cowan's theory:
https://www.youtube.com/watch?v=koyUdumNBg4
https://archive.org/details/corona_viru ... -+720p.mp4