World War I and Its Aftermath

Even as war raged on the Western Front, a new deadly threat loomed: influenza. In the spring of 1918, a strain of the flu virus appeared in the farm country of Haskell County, Kansas, and hit nearby Camp Funston, one of the largest army training camps in the nation. The virus spread like wildfire.

The camp had brought disparate populations together, shuffled them between bases, sent them back to their homes across the nation, and, in consecutive waves, deployed them around the world. Between March and May 1918, fourteen of the largest American military training camps reported outbreaks of influenza. Some of the infected soldiers carried the virus on troop transports to France. By September 1918, influenza spread to all training camps in the United States. And then it mutated.²⁰

The second wave of the virus, a mutated strain, was even deadlier than the first. It struck down those in the prime of their lives: a disproportionate amount of influenza victims were between ages eighteen and thirty-five. In Europe, influenza hit both sides of the Western Front. The "Spanish Influenza," or the "Spanish Lady," misnamed due to accounts of the disease that first appeared in the uncensored newspapers of neutral Spain, resulted in the deaths of an estimated fifty million people worldwide. 

Reports from the Surgeon General of the Army revealed that while 227,000 American soldiers were hospitalized from wounds received in battle, almost half a million suffered from influenza. The worst part of the epidemic struck during the height of the Meuse-Argonne Offensive in the fall of 1918 and weakened the combat capabilities of the American and German armies. During the war, more soldiers died from influenza than combat. The pandemic continued to spread after the armistice before finally fading in the early 1920s. No cure was ever found.²¹