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.
About Vaccine Safety
Vaccines Safety Basics
Vaccines: Hib, HPV, MMR, MMRV, Rotavirus...
How Vaccines are Monitored
How Vaccines are Tested, Vaccine Monitoring Activities in the U.S. and Common Questions, etc...
Special Populations
Information for Healthcare Providers, Parents, Researchers...
Addressing Common Concerns
Autism, GBS, SIDS, Fainting (Syncope), MS, Thimerosal, FAQs...
Activities
About CISA Network, Emergency Preparedness, VAERS, VAU, VSD...
Resource Library
Articles, Fact Sheets, FAQs, Research...
Get email updates
To receive email updates about this page, enter your email address:
Contact Us:
- Centers for Disease Control and Prevention
1600 Clifton Rd
Atlanta, GA 30333 - 800-CDC-INFO
(800-232-4636)
TTY: (888) 232-6348 - New Hours of Operation
8am-8pm ET/Monday-Friday
Closed Holidays - cdcinfo@cdc.gov
