Multiple choice general knowledge

The live polio vaccine which can be taken by mouth was developed by:

  1. Albert Sabin

  2. Edward Jenner

  3. Jonas Salk

  4. Selmen Waksman
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A Correct answer
Explanation

Albert Sabin developed the oral polio vaccine (OPV) which can be taken by mouth as drops. This live attenuated vaccine was licensed in 1962 and became widely used globally. Jonas Salk developed the earlier injectable inactivated polio vaccine (IPV) in 1955. Edward Jenner developed the smallpox vaccine, and Selman Waksman discovered streptomycin.

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