1 Jan 1500 Jahr - Variolation and smallpox

Beschreibung:

-In the 1600s China first started using variolation which was a process of grinding up smallpox scabs and having healthy people inhale them to create a more mild infection
-Dropped mortality rates to 1%

Zugefügt zum Band der Zeit:

15 Dez 2018

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Alex Wang Diseases in History Timeline

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