What was the worst flu epidemic in U.S. History?

The Bubonic Plague, also known as the Black Death, ripped across Europe and West Asia during a seven-year period between 1347-1353. This pandemic claimed the lives of between 75 and 200 million people.

Once again, the plague was carried by fleas that fed on black rats. The rats feasted on grain that was in merchant ships. The Black Death broke along the Silk Road and spread to all of the Mediterranean. The Black Death killed between 30 and 60 percent of Europe’s population.

Silly little fact, the peasants that handled horses were not affected with the plague. The fleas were repelled by the body odor of horses. People wore the same clothes until they rotted off and didn't bathe. Who knew back then that horse odor was flea repellant.

1918 the spanish flu pandemic killed 50 to 100 million people worldwide.

The answer to the above question is this virus killed 50 million to over 100 million world wide. It began at a U.S. Army installation here in the U.S. in 1918.