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State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · Question 112

Which scientist/physician first introduced vaccination?

  1. Robert Koch
  2. Élie Metchnikoff
  3. Edward Jenner
  4. Joseph Lister
  5. None of the above / More than one of the above
Show answer & explanation

Answer: (C) Edward Jenner

Explanation

Edward Jenner used cowpox to protect against smallpox, founding vaccination.

  • (A) Incorrect

    Wrong: discovered TB and cholera bacteria.

  • (B) Incorrect

    Wrong: discovered phagocytosis.

  • (C) Correct

    Correct: Jenner developed the smallpox vaccine (1796).

  • (D) Incorrect

    Wrong: pioneered antiseptic surgery.

  • (E) Incorrect

    Wrong: only one of the options A–D is correct.