Which Indian scientist is known for the development of the smallpox vaccine? MCQ with Answer and Explanation

Which Indian scientist is known for the development of the smallpox vaccine?
A. Dr. Hargobind Khorana
B. Dr. Y. Subba Row
C. Dr. Edward Jenner
D. None, it was discovered earlier
Answer: Option D
Solution (By JKSSB Mock Tests)
Edward Jenner developed the smallpox vaccine; Indian contributions are notable in other vaccines.

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