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1 janv. 1796 - Variolation

Description:

Purposefully infect someone with smallpox ti create a mild infection to create immunity. There was a 30% mortality rate for smallpox versus 1-2% mortality rate from variolation.

Ajouté au bande de temps:

Diseases and The History of Them Among The World

ByMegan Forghani
14 déc. 2018

Date:

1 janv. 1796
Maintenaint
~ Il y a 228 ans

Les images:

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