The National Network for Immunization Information (NNii) provides up-to-date, science-based information to healthcare professionals, the media, and the public: everyone who needs to know the facts about vaccines and immunization.

Vaccine Safety

Vaccine Safety Datalink

The VSD project was created in 1990 by the Centers for Disease Control and Prevention (CDC) and currently involves partnerships with 8 large health maintenance organizations (HMOs) to continually monitor vaccine safety.

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For Parents

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.

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