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A Modern, Thriving SocietyScience and Technology

Who developed the first successful vaccine, against smallpox?

  1. Edward Jenner
  2. Louis Pasteur
  3. Alexander Fleming
  4. Joseph Lister

Why this is the correct answer

Edward Jenner developed the smallpox vaccine in 1796 after observing that milkmaids who contracted cowpox seemed immune to smallpox. His discovery was the world's first successful vaccine and paved the way for vaccination as a public health strategy.

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