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Immunization Science
Immunization Issues
Vaccines and the Diseases they Prevent
Health Professionals
About NNii


NNii is committed to providing parents with the most up-to-date, scientifically valid information on immunizations. This section contains easy-to-use information on each of the recommended childhood vaccines, the recommended childhood immunization schedule, tips on using the Web as a source of immunization and health information, links to other helpful sites, and pictures of vaccine-preventable diseases.

  • Immunization Schedules

    See this year's recommended childhood, adolescent, and adult immunization schedules.
  • Important Facts for Parents to Know about Childhood Vaccines

    Fact sheets that give basic information on childhood diseases, as well as the effectiveness and possible side effects of the vaccines that can prevent them.
  • Frequently Asked Questions on Childhood Vaccines

    Fact sheets with in-depth answers to questions about childhood vaccines.
  • CDC Vaccine Information Statements

    Information provided by the Centers for Disease Control and Prevention on specific vaccines and the diseases they can prevent. Healthcare providers are required to give these to their patients before administering a vaccine.
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