Answer:Smallpox and vaccination are intimately connected. Edward Jenner developed the first vaccine to prevent smallpox infections, and this success led to the global eradication of smallpox and the development of many more life-saving vaccines.
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Answer: George Kenan.
Explanation: have a good day and stay happy. :)
Answer:
Two: South Korea and North Korea
How to act like a president and constructing the beginnings of presidency and a new government