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jan 1, 1796 - Vaccination and smallpox

Description:

-Edward Jenner an English doctor shows thee effectiveness of using cowpox to protect people from smallpox forming the basis for vaccination
-Dropped mortality rate to <0.001%

Added to timeline:

15 Dec 2018
1
0
405
Alex Wang Diseases in History Timeline

Date:

jan 1, 1796
Now
~ 228 years ago
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