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

BSE Transmission and Vaccines

The Food and Drug Administration Center for Biologics Evaluation and Research (CBER) conducted a careful review of the science relating to risk of bovine spongiform encephalopathy (BSE) transmission through use of vaccines.


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.