Vaccine Safety

Vaccine Safety Monitoring Systems

VAERS
The Vaccine Adverse Event Reporting System (VAERS) serves as the nation’s early warning system to monitor for potential vaccine safety problems. Anyone can report possible health problems to VAERS.

VSD
The Vaccine Safety Datalink (VSD) is a collaboration between CDC and 13 health care organizations that conducts active vaccine safety monitoring and research.

V-safe
V-safe is a safety monitoring system that vaccine recipients can use to share with CDC how they feel after vaccination.

CISA Project
The Clinical Immunization Safety Assessment (CISA) Project is a partnership between CDC and 7 medical research centers that provides expert consultation and conducts clinical research on vaccine-associated health risks.