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
Hepatitis B Vaccine and Multiple Sclerosis
Although scientific data show that HBV vaccine is very safe, anecdotes have caused some to hypothesize that HBV vaccine might be associated with an increased risk of demyelinating neurological disorders, such as multiple sclerosis.
Vaccine Components
Aluminum Adjuvants in Vaccines
Some vaccines contain chemicals called adjuvants to help stimulate the production of immunity against the vaccine ingredients, making the vaccine more effective. In the United States, aluminum salts have frequently been incorporated as adjuvants in vaccines.
News
Updates
Early Estimates of Seasonal Influenza Vaccine Effectiveness — United States, January 2013
Posted: Ene 18, 2013
Mumps Outbreak on a University Campus — California, 2011
Posted: Dic 10, 2012
News Briefs
FDA Approves New Seasonal Influenza Vaccine Made Using Novel Technology
FDA News Release
Published: Ene 16, 2013