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22 avr. 1800 - First use of Small pox vaccine

Description:

in Boston, MA by Edward Jenner when he inoculated a boy

Ajouté au bande de temps:

Diseases that challenged the scientific community

14 déc. 2018

1

0

613

Date:

22 avr. 1800

Maintenaint

~ Il y a 225 ans

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