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What is the historical incidence of deadly influenza pandemics?

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11 months ago

1889 – Unknown i.e. Russian flu pandemic (deaths = 1 million) 1918 – Influenza H1N1 pandemic i.e. Spanish flu (deaths = 50 million) 1957 – Influenza H2N2 pandemic i.e. Asian flu (deaths = 1.5-2 million) 1968 – Influenza H3N2 pandemic i.e. Hong Kong flu (deaths = 1 million) 2009 – Swine flu (deaths = 284,000)

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