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Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.

Feeling abnormal

40,899 total reports7.1% serious outcomes
40,899
Total Reports
293
Deaths
2,602
Hospitalizations
7.1
Severity Rate
% serious outcomes

About Feeling abnormal Reports

Feeling abnormal has been reported 40,899 times in VAERS from 1990 to 2026.

Of these reports, 293 were associated with death (0.72%) and 2,602 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Feeling abnormal is 7.1%.

Understanding Feeling abnormal in VAERS

Temporal association only: These reports show Feeling abnormal occurred after vaccination, not necessarily because of vaccination.
Background rates matter: Many symptoms occur naturally at baseline rates in the population, unrelated to vaccination.
Reporting variability: Medical terminology may be used differently by various healthcare providers and over time.
Investigation needed: High-frequency reports may trigger further epidemiological studies to determine causation.

What This Data Shows

Most Associated Vaccines: The vaccines most frequently mentioned in reports with Feeling abnormal. This may reflect usage patterns, not causation.
Severity Patterns: The percentage of reports that involve serious outcomes can help prioritize safety investigations.
Reporting Trends: Changes in reporting frequency over time may reflect increased awareness, media attention, or actual safety signals.

Quick Facts

Reports:40,899
Deaths:293
Hospitalizations:2,602
Mortality Rate:0.72%
Severity Rate:7.1%

Data Source

This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.