The scientist who made variolation safer and more effective was
A) Pasteur.
B) Jenner.
C) Metchnikoff.
D) Fleming.
E) Ehrlich.

Question

Quizplus · Accepted Answer

The scientist who made variolation safer and more effective was Edward Jenner, who developed the first vaccine for smallpox by using cowpox virus. Pasteur developed vaccines for rabies and anthrax, Metchnikoff discovered phagocytes, Fleming discovered penicillin, and Ehrlich developed chemotherapy.

The Scientist Who Made Variolation Safer and More Effective Was