Phần 2
If we look at the 20th Century, and we look at the death …(9)…of the 20th Century, I think everybody would say “oh yeah there must be a …(10)…from World War I”, and you know sure enough there it is like 25 million, and it must be a big …(10)…for World War II, and there it is – like 65 million, but then you'll see this other …(10)…that is as large as World War II, right after World War I – and most people, a lot of people say what? Wait a minute – what was that?
There's two kinds of …(11)…: There's …(11)…that spread between humans very effectively, and there's …(11)…that kill lots of people. And those two properties have only been …(12)…into a widespread flu, once in history. That is Spanish Flu. We have no …(13)…where it came from – it's called the Spanish flu, because the Spanish …(14)…was the freest, they were the first to talk openly about it, and so in the annals of epidemic …(15)…that's the big event.
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