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1950s - The polio vaccine is introduced to the public in 1956.Stock video:

Clip Information

  • Clip Length: 0:50
  • Aspect Ratio: 3:2
  • Clip ID: 3908987
  • Copyright: Rick Ray


  • SD - 720 X 480 @ 29.97 fps JPEG 45.4MB
  • WebLR - 360 X 240 @ 29.97 fps MPEG 13.2MB

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