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Understanding the Vaccine Adverse Event Reporting System (VAERS)
  • Published Date:
    February 2013
  • Language:
Filetype[PDF-295.10 KB]

  • Corporate Authors:
    Centers for Disease Control and Prevention (U.S.) ; United States. Food and Drug Administration. ; American Academy of Family Physicians. ; ... More ▼
  • Description:
    What is VAERS? -- How are the VAERS data used? -- Vaccines are tested before they are used, so why are there possible unknown side effects? -- Are all events reported to VAERS caused by vaccinations? -- Who can report to VAERS? -- Why should I report to VAERS? -- How do I report to VAERS? -- What events should I report to VAERS? -- How do I find out if a vaccine adverse event has been reported to VAERS?

    • The Vaccine Adverse Event Reporting System (VAERS) is one component of the United States’ comprehensive vaccine safety monitoring system.

    • VAERS reports are monitored carefully by the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA).

    • Reports of adverse events (possible side effects) after vaccination do not mean that the reported problem was caused by a vaccine. Reports are signals that alert scientists of possible cause-and- effect relationships that need to be investigated.

    • Anyone can submit a report to VAERS including health care professionals, vaccine manufacturers, vaccine recipients, and parents or family members of people who have received a vaccine.

    Adverse events reported to VAERS are not necessarily side effects caused by vaccination. An adverse event is a health problem that happens after vaccination that may or may not be caused by a vaccine. These events may require further investigation. By definition, a side effect has been shown to be linked to a vaccine by scientific studies.


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