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

Mitochondrial Disorders and Vaccines

In 2007, the National Vaccine Injury Compensation Program (VICP) conceded a case concerning a child with a mitochondrial disorder. What are the implications of this decision?

Read More...

Thimerosal-Mercury

Mercury in Vaccines

This article answers the most frequently asked questions about thimerosal and its use as a preservative in vaccines.

Read More...