Vaccine Adverse Event Reporting System

The Vaccine Adverse Event Reporting System (VAERS) is a U.S. national program that collects reports of possible side effects or health issues occurring after vaccination. Healthcare providers, patients, and vaccine manufacturers can submit these reports to monitor vaccine safety. VAERS helps identify patterns or signals of potential problems, but it does not determine cause-and-effect. Instead, it serves as an early warning system to ensure vaccines remain safe and effective. The data collected are analyzed by public health officials to maintain trust and promptly address any concerns related to vaccination.