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1 jan 1796 ano - Variolation

Descrição:

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.

Adicionado na linha do tempo:

Diseases and The History of Them Among The World

ByMegan Forghani
14 dez 2018
1
0
697

Data:

1 jan 1796 ano
Agora
~ 228 years ago

Imagens:

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