World Polio Day is observed every year on 24 October to commemorate the birth of Jonas Salk, the American virologist who helped create the world’s first safe and effective polio vaccine.from Top Lifestyle News- News18.com https://ift.tt/34kFSkx
World Polio Day is observed every year on 24 October to commemorate the birth of Jonas Salk, the American virologist who helped create the world’s first safe and effective polio vaccine.from Top Lifestyle News- News18.com https://ift.tt/34kFSkx
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