Homework answers / question archive / Why did the native Americans have no history of such diseases and thus no immunities? Why did the same thing not happen to Eurasians when they contacted Americans--why did Eurasians not fall to a pandemic born in America?

Why did the native Americans have no history of such diseases and thus no immunities? Why did the same thing not happen to Eurasians when they contacted Americans--why did Eurasians not fall to a pandemic born in America?

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Why did the native Americans have no history of such diseases and thus no immunities? Why did the same thing not happen to Eurasians when they contacted Americans--why did Eurasians not fall to a pandemic born in America?