GK
DAYS AND YEARS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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On which date the World Polio Day has been observed?
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October 12
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October 22
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October 14
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October 24
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Explanation:
Detailed explanation-1: -Detailed Solution. The correct answer is October 24th. World Polio Day is celebrated on October 24th. World Polio Day was established by Rotary International to commemorate the birth of Jonas Salk, who led the first team to develop a vaccine against poliomyelitis.
Detailed explanation-2: -Salk tested his experimental killed-virus vaccine on himself and his family in 1953, and a year later on 1.6 million children in Canada, Finland and the USA. The results were announced on 12 April 1955, and Salk’s inactivated polio vaccine (IPV) was licensed on the same day.
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