I think you are confusing several different factoids. The 1918 pandemic, known as "Spanish flu" was indeed influenza A/H1N1. That A/H1N1 pandemic ended 39 years later in 1957.
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The same A/H1N1 strain was reintroduced in 1977 due to a lab leak, causing another pandemic from 1977-2009 before it was replaced by a zoonotic A/H1N1 strain. The 2009 A/H1N1 pandemic continues today.
sep 3, 2025, 3:59 am • 0 0 • view
thank you for correcting me. i just vaguely remember my high school history teacher for ap us history had explained it that way. lincoln high school in tacoma,wa back in the late 90's
sep 3, 2025, 4:03 am • 1 0 • view