Military vehicles and tents at a training camp in Afghanistan under clear skies.

A virus hitches a ride

Armies on the move crammed into camps and ships with poor sanitation. The war’s mass movement was a major factor in the deadly Spanish flu.

World War I: How War Supercharged a Pandemic

Historic World War I cemetery gravestones under clear blue sky, a solemn tribute to fallen soldiers.

The toll

Spanish flu killed at least 17–25 million people, including about 675,000 Americans and 2.64 million Europeans.

World War I: How War Supercharged a Pandemic

World War I: How War Supercharged a Pandemic | DeepSwipe