How the Spanish Flu Killed More People than World War One

The video discusses the Spanish flu pandemic of 1918, which killed more people than World War I. It originated in a British Army hospital and spread rapidly due to troop movements and lack of wartime censorship in Spain. The flu was particularly deadly due to a cytokine storm triggered by the immune system, affecting healthy adults the most. The pandemic eventually subsided as the virus mutated into a milder form, leaving a significant historical legacy, including influencing the outcome of World War I and advancing the role of women in nursing.

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