antonyomyers antonyomyers
  • 13-04-2016
  • Health
contestada

The smallpox epidemic, Edward Jenner, and cowpox were all instrumental in the development of the first _____.

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Maditaylor1999
Maditaylor1999 Maditaylor1999
  • 15-04-2016
vaccine also pastur created pencilin

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YungRaccoon16
YungRaccoon16 YungRaccoon16
  • 12-10-2020

Answer:ITS B

Explanation:

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