![Imagem](https://abcnews.go.com/images/Health/doc-01-as-gty-200724-resized.gif)
There are strong parallels between the COVID-19 pandemic and the 1918 flu pandemic, considered to be the deadliest of the 20th century.
The 1918 flu slotxo online pandemic killed an estimated 50 million worldwide, including nearly 675,000 Americans, according to the Centers for Disease Control and Prevention.