Q. Which British physician discovered smallpox vaccine?

  • (A) Wilham Rotzen
  • (B) James Hames
  • (C) Alex Ray
  • (D) Edward Jenner
✅ Correct Answer: (D) Edward Jenner

Published by Mr. Dubey ⭐ 111.54K Points at 16-Mar-2022 04:02 pm in Science

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