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| | Vaccine Adverse Events Reporting System (VAERS) Help |
 | | Event characteristics include symptoms reported, vaccine type, name and manufacturer, number of days between vaccination and the adverse event, vaccination date, report date, whether the event was considered serious, how the event outcome was categorized, whether the patient recovered, and the patient's age group, gender and home state. |
 | | The first report ends in "-1" and subsequent reports are indicated in the order received, ending in "-2" for the second report, etc. When a report is later determined to refer to a previously reported event, then the VAERS ID is re-assigned, and the initial VAERS ID is shown in parenthesis. |
 | | While some events reported to VAERS are truly caused by vaccines, others may be related to an underlying disease or condition, to drugs being taken concurrently, or may occur by chance shortly after a vaccine was administered. |
| wonder.cdc.gov /wonder/help/vaers.html (3897 words) |
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