ప్రధాన కంటెంట్‌కు వెళ్లండి

State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · ప్రశ్న 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

సమాధానం చూపించు & వివరణ

సమాధానం: (C) Edward Jenner

వివరణ

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

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