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Vika [28.1K]
2 years ago
6

How long did it take to develop the smallpox vaccine?

Health
1 answer:
Vitek1552 [10]2 years ago
5 0
In 1798 the first smallpox vaccine was developed.Over the 18th and 19th centuries,systematic implementation of mass smallpox immunization culminated in its global eradication in 1979.
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