HISTORY
THE COLD WAR ERA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Polio
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Multiple Sclerosis
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Rickets
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HIV/AIDS
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Detailed explanation-1: -The first polio vaccine was discovered by Jonas Salk in 1953.
Detailed explanation-2: -Two different kinds of vaccine are available: An inactivated (killed) polio vaccine (IPV) developed by Dr. Jonas Salk and first used in 1955, and. A live attenuated (weakened) oral polio vaccine (OPV) developed by Dr.
Detailed explanation-3: -Salk’s procedure, first attempted unsuccessfully by American Maurice Brodie in the 1930s, was to kill several strains of the virus and then inject the benign viruses into a healthy person’s bloodstream. The person’s immune system would then create antibodies designed to resist future exposure to poliomyelitis.
Detailed explanation-4: -The first polio vaccine to be widely used in humans, known as inactivated poliovirus vaccine (IPV) or Salk vaccine, was developed in the early 1950s by American physician Jonas Salk.
Detailed explanation-5: -The polio vaccine comes in two types: the Salk vaccine, made with a killed virus and the Sabin vaccine, made with a live but weakened, or attenuated, virus.