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June 15, 2024
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30 Apr 1796 Jahr - Jenner performed key experiment

Beschreibung:

treated lady for cowpox then transferred fluid from pustule on her arm to young boy who recovered after 9 days. when innoculated with smallpox he showed no symptoms

Zugefügt zum Band der Zeit:

14 Dez 2017
0
0
795

Datum:

30 Apr 1796 Jahr
Jetzt
~ 228 years ago