We Heard the Bells: The Influenza of 1918

We Heard the Bells: The Influenza of 1918 Department of Health and Human Services January 2010 In 19181919, the worst flu in recorded history killed an estimated 50 million people worldwide. The U. S. death toll was 675, 000 five times the number of U. S. soldiers killed in World War I. Where did the 1918 flu come from Why was it so lethal What did we learn Study materials are available at