The Spanish flu was a three-act tragedy.
Act I: The Spanish flu came in early 1918, hitting people in the United States, Europe, and possibly across Asia. Many people suffered, but only a few died. More precisely, the number of people who died from the Spanish flu was about the same as those who died from the common flu.
The specific causes of how and why the Spanish flu originated are still being discussed. Evidence so far suggests it first appeared in the eastern United States, but not all researchers agree. Perhaps the virus originated from the intestines of wild aquatic birds, a common host of flu bacteria. Secretions from these birds infected livestock chickens, ducks, and eventually people. Or microorganisms moved from poultry to pigs, and then the virus was transformed into a new strain, infecting people. During World War I, soldiers gathered in barracks and were transported to other areas, and the virus spread widely.
Act 2: By August, the brutal flu strain had destroyed the world, killing people 25 times more deadly than the regular flu, adding to the fatality rate of young people who were killed more than others. The victims were more women than men. I don't know why young people and women were targeted.
Act III: The killer made another appearance in early 1919, before the curtain fell. Unfortunately, the deadly strain of the disease was repeated several times, unwelcomely, from 1920 to 1922, until it gradually disappeared. For people with the flu, the Spanish flu's power was brutal and long-lasting. Writer Catherine Ann Porter almost died of the flu, too. He survived, but his fiance died. Potter said. "It just tore my life apart. If everything was ready before the flu, it changed in an unfamiliar way after the flu. Really."
There was a question before reading the book, "Why did the Spanish flu start in the U.S.?", but the book publicly reported it when the flu spread in Spain, and found out new facts because people around the world accidentally connected Spain to the flu outbreak. And I came to think that the COVID-19 pandemic was just like the Spanish flu epidemic. Also, if people hadn't called it the Spanish flu, it would have been the American flu.