Over Thousands of Years, Smallpox Killed Hundreds of Millions of People. The Disease Was ... - Latest Tweet by World Health Organization

Over thousands of years, smallpox killed hundreds of millions of people. The disease was highly infectious, with no known cure.

Less than 200 years after the discovery of the #smallpox vaccine by Dr Jenner, the lethal disease was eradicated all over the world. #VaccinesWork pic.twitter.com/f6ckZzHzUl— World Health Organization (WHO) (@WHO) January 26, 2023

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