मुख्य मजकुराकडे जा

State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · प्रश्न 112

Which scientist/physician first introduced vaccination?

Robert Koch
Élie Metchnikoff
Edward Jenner
Joseph Lister
None of the above / More than one of the above

उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (C) Edward Jenner

स्पष्टीकरण

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

(A) चूक
Wrong: discovered TB and cholera bacteria.
(B) चूक
Wrong: discovered phagocytosis.
(C) बरोबर
Correct: Jenner developed the smallpox vaccine (1796).
(D) चूक
Wrong: pioneered antiseptic surgery.
(E) चूक
Wrong: only one of the options A–D is correct.