VAERS COVID Vaccine Data

Important Things To Know About VAERS

  • VAERS is an early warning system used to monitor adverse events that happen after vaccination. VAERS is the frontline system of a comprehensive vaccine safety monitoring program in the United States. It is one of several systems CDC and the US Food and Drug Administration (FDA) use to help ensure all vaccines, including COVID-19 vaccines, are safe.
  • VAERS gives vaccine safety experts valuable information so they can assess possible safety concerns related to vaccines, including new COVID-19 vaccines. It is especially useful for quickly detecting unusual or unexpected patterns of health problems (also called “adverse events”) that might indicate a possible safety problem with a vaccine.
  • If a health problem is reported to VAERS, that doesn’t mean that the vaccine caused the problem. It warns vaccine safety experts of potential problems that may need investigation and alerts them to take further action, as needed.
  • Millions of people in the United States have received COVID-19 vaccines. Other than rare reports of severe allergic reactions, analysis of VAERS reports has not detected any patterns that would indicate a safety problem with COVID-19 vaccines.

How Reports Come into VAERS

VAERS collects reports of possible adverse events that happen after vaccination. As a condition of a vaccine’s use under Emergency Use Authorization, the FDA requires healthcare professionals to report to VAERS certain adverse eventsexternal icon that occur after COVID-19 vaccination.

However, anyone can submit a report to VAERSexternal icon, including patients, family members, healthcare providers, and vaccine manufacturers, even if it isn’t clear if the vaccine caused the health problem.

How VAERS Reports Are Reviewed

Vaccine safety experts review all reports of serious adverse events submitted to VAERS. A serious adverse event after vaccination is something that causes

  • Permanent disability
  • Hospitalization or an extended hospital stay (if vaccinated while in the hospital)
  • Life-threatening illness
  • Birth defects (congenital anomalies)
  • Death

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