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13 oct. 1879 - Variolation
Description:
Purposely infect an individual with smallpox to create immunity. 1-3% chance of working
Ajouté au bande de temps:
14 déc. 2018
1
0
749
The History of Infectious Diseases
Date:
13 oct. 1879
Maintenaint
~ Il y a 144 ans