Question

The first effective vaccine against polio was prepared by:
a. J.H. Gibbon
c. Jonas. E. Salk
b. Robert Edwards
d. James Simpson​

Answer 1

Answer:

The development of effective vaccines to prevent paralytic polio was one of the major medical breakthroughs of the 20th century. Two different kinds of vaccine are available: An inactivated (killed) polio vaccine (IPV) developed by Dr. Jonas Salk and first used in 1955.

Answer 2

Option C - Jonas.E.Salk

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