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 Vaccine Safety Basics
bullet Information for Parents
bullet Why It's Important to Monitor Vaccine Safety
bullet How Vaccines Are Tested and Monitored
bullet Common Questions
bullet Vaccine Safety Concerns
bullet History of Vaccine Safety

 Public Health Activities
bullet Vaccine Adverse Event Reporting System (VAERS)
bullet Vaccine Safety Datalink (VSD) Project
bullet Clinical Immunization Safety Assessment (CISA) Network
bullet Brighton Collaboration
bullet Vaccine Technology
bullet Emergency Preparedness
bullet Publications
bullet Scientific Agenda

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Photograph of a Girl Being Vaccinated Monitoring health problems after vaccination is essential to ensure the United States continues to have the safest, most effective vaccine supply in history.

CDC's Immunization Safety Office identifies possible vaccine side effects and conducts studies to determine whether a health problem is caused by a specific vaccine.

Featured Items

Photo of Teen Girls Human Papillomavirus (HPV) Vaccine Safety
The HPV vaccine, Gardasil, protects against the types of HPV that most commonly cause cervical cancer and genital warts.
Photo of clipboard Reports of Health Concerns Following HPV Vaccination
Through VAERS, CDC closely monitors the safety of the HPV vaccine.
Photo of a boy and a girl CDC Statement on Autism and Thimerosal
Evidence from several studies does not support an association between thimerosal in vaccines and autism.
Photo of CDC researchers as they review incoming data on a computer Rapid Cycle Analysis (RCA)
This active surveillance system is designed to detect adverse events (possible side effects) following vaccination very quickly.
Photo of Baby Being Vaccinated RotaTeq Vaccine Safety Study
This study looked for evidence of a link between RotaTeq and intussusception (a type of bowel obstruction).
Photo of Branding Logo CDC supports vaccine safety research
Vaccine safety research is on the way. Funding opportunities are available at PA-08-256 and PA-08-257.
Page last reviewed: October 6, 2008
Page last updated: October 21, 2008
Source: Immunization Safety Office

Health Topics
Immunization Schedules
Preventing Flu with Vaccination
Traveler's Health: Vaccinations
Vaccine-Preventable Diseases
Hepatitis B
Human Papillomavirus (HPV)
Immunization FastStats
Vaccines and Autism FAQs
CDC en Español: Inmunización

Government Agencies
National Center for Immunization and Respiratory Diseases
National Vaccine Injury Compensation Program
National Vaccine Program Office
U.S. Food and Drug Administration
National Institute of Allergy and Infectious Diseases (NIAID)

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