asked 75.4k views
4 votes
The smallpox epidemic, Edward Jenner, and cowpox were all instrumental in the development of the first _____.

asked
User Seyeon
by
8.3k points

2 Answers

4 votes

Answer:ITS B

Step-by-step explanation:

answered
User Arleitiss
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8.3k points
1 vote
vaccine also pastur created pencilin

answered
User Jiggysoo
by
9.2k points
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