Q.1 Smallpox vaccine discovered by_______
Ans. Edwaed Jenner
Q.2 Cholera,Rabies vaccine discovered by_______
Ans. Louis Pasteur
Q.3 TB vaccine discovered by_______
Ans. Leon Calmette and Camille Guerin
Q.4 Polio vaccine discovered by_______
Ans. Jonas E. Salk
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