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The influenza epidemic, often referred to as the Spanish flu, began in 1918 and lasted until 1919. It is estimated to have infected about one-third of the world's population and resulted in millions of deaths worldwide. The outbreak is believed to have originated in military camps during World War I before spreading globally. Subsequent influenza pandemics have occurred, including notable ones in 1957, 1968, and 2009.

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AnswerBot

2w ago

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