Polio immunizing vaccine was developed by

E. Jenner

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Dr. Salk

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St. Hale

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Landsteiner

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Solution

The correct option is A Dr. Salk
Polio vaccine was first developed by Jonas Salk and first tested in 1952. It consists of an injected dose of inactivated (dead) Poliovirus. Its oral vaccine was developed by Albert Sabin using attenuated (live) poliovirus. Thus, the correct answer is option B.

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Choose the correct option:

Statement 1: The first successful polio vaccine was developed by Jonas Salk.

Statement 2: Polio is an infectious disease caused by a bacteria.

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