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22 apr 1796 anni - Edward Jenner uses variolation to infect James Phillips

Descrizione:

Scraped the cowpox from infected person and purposefully infected him

Aggiunto al nastro di tempo:

Diseases that challenged the scientific community

14 dic 2018

1

0

613

Data:

22 apr 1796 anni

Adesso

~ 229 years ago

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