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How are Vaccines Tested for Safety? - The Children's Hospital of Philadelphia (13 of 14)

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Uploaded by on Nov 9, 2009

This segment describes how vaccines are evaluated for safety.

Vaccines and Your Baby explains the basics of vaccines. You'll learn about vaccines and how they work, the science behind vaccines, immunity, and the diseases that vaccines prevent. Parents of children who suffered vaccine-preventable diseases tell their stories.

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