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22 abr 1796 ano - Edward Jenner uses variolation to infect James Phillips

Descrição:

Scraped the cowpox from infected person and purposefully infected him

Adicionado na linha do tempo:

Diseases that challenged the scientific community

14 dez 2018

1

0

613

Data:

22 abr 1796 ano

Agora

~ 229 years ago

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