Note: VAERS is used in the USA. To aid in research in -All Countries-, file vaccine reactions or damage here:
International Vaccine Injury Compensation Programs - World Health Organization
Dr. Froeschle [James Froeschle, Connaught Laboratories, Swiftwater, Pennsylvania] gave information about adverse events following diphtheria and tetanus toxoids (DT) that had been reported to Connaught.
...the company estimates about a 50-fold underreporting of adverse events in the passive reporting system.
A recent review article found that between 3% and 11% of hospital admissions could be attributed to adverse drug reactions. Only about 1% of serious events are reported to the FDA, according to one study.
UNDER-REPORTING - continued
Electronic Support for Public Health–Vaccine Adverse
Event Reporting System (ESP:VAERS)
Inclusive dates: 12/01/07 - 09/30/10
... Of these doses, 35,570 possible reactions (2.6 percent of vaccinations) were identified.
... Adverse events from drugs and vaccines are common, but underreported. Although 25% of
ambulatory patients experience an adverse drug event, less than 0.3% of all adverse drug events
and 1-13% of serious events are reported to the Food and Drug Administration (FDA).
Likewise, fewer than 1% of vaccine adverse events are reported. Low reporting rates preclude or
slow the identification of “problem” drugs and vaccines that endanger public health. New
surveillance methods for drug and vaccine adverse effects are needed.
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