General Knowledge Quiz Contest (149) - Participate By Giving Answer

in contest •  7 years ago 

Hello friends,

General Knowledge Quiz Contest - 149.

Test your General Knowledge, participate by giving answer in comment.

Question:

In what decade was the oral vaccine against polio developed?

Options:

  • A
    1950s

  • B
    1960s

  • C
    1940s

  • D
    1970s

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contest quiz generalknowledge gk knowledge
7 years ago by

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      ·  7 years ago 

    Correct Answer: B - 1960s

    The polio vaccine known as oral poliovirus vaccine (OPV), was developed by American physician and microbiologist Albert Sabin containing live attenuated (weakened) virus in the 1960s. Jonas Salk developed a "killed-virus" vaccine against polio in the 1950s which was given by injection.

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    1 vote
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      ·  7 years ago 

    A. 1950s

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      1 vote
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        ·  7 years ago 

      B : 1960s

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        1 vote
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          ·  7 years ago 

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            ·  7 years ago 

          B 1960S

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              ·  7 years ago 

            The answer is A-1950s

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                ·  7 years ago 

              C. 1940s

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                  ·  7 years ago 

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