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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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3 jan 1796 ano - First vaccine discovered and used - Edward Jenner used a cowpox vaccine on 13 year old boy.
Adicionado na linha do tempo:
Medical Discoveries
By
shannon
13 out 2021
0
0
431
Data:
3 jan 1796 ano
Agora
~ 229 years ago
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