Comments by "" (@orboakin8074) on "What Happened After Polio Vaccine Was Developed" video.

  1. As a Nigerian, i am so grateful for Dr. Salk👏👏 When my grandparents were young, polio was a serious disease here but they and others got the vaccine and it saved so many lives. Same with my parents and me later in the late 90s when i was born. Polio is less of a threat now. God bless Dr. Salk.
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