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1 apr 1796 anni - First Smallpox vaccination performed by Edward Jenner

Descrizione:

Smallpox innoculation had been developed in the 1700s, but it was risky. Edward Jenner spent 18 years studying the how exposure to cowpox made one immune to smallpox. Having performed his first vaccination on a young boy, he found that his vaccinations were successful. This completed the trend of eliminating smallpox as after this discovery, Jenner's new treatment would spread around the world.

Aggiunto al nastro di tempo:

Data:

1 apr 1796 anni
Adesso
~ 229 years ago

Immagini: