What Is the Harm in Delaying or Spacing out Vaccines? Channel: The Children's Hospital of Philadelphia84K views • 18/04/2016Related VideosIs it OK to Delay Vaccines? | Fact Check: FAQs on Kids’ VaccinesDr. Donovan on Why Vaccines Shouldn't be Spaced OutChildhood Vaccines - Should They Be Spaced Out Over Time? Vaccine Expert Weighs In!
