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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.
Insomnia
20,807 total reports5.8% serious outcomes
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20,807
Total Reports
106
Deaths
1,106
Hospitalizations
5.8
Severity Rate
% serious outcomes
About Insomnia Reports
Insomnia has been reported 20,807 times in VAERS from 1990 to 2026.
Of these reports, 106 were associated with death (0.51%) and 1,106 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Insomnia is 5.8%.
Understanding Insomnia in VAERS
•Temporal association only: These reports show Insomnia 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 Insomnia. 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.
Most Associated Vaccines
1. COVID1913,569
2. VARZOS2,138
3. FLU31,431
4. PPV1,061
5. HEP954
6. HIBV928
7. MMR667
8. FLUX647
9. OPV593
10. FLU4555
Detailed Breakdowns
Quick Facts
Reports:20,807
Deaths:106
Hospitalizations:1,106
Mortality Rate:0.51%
Severity Rate:5.8%
Related Analysis
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Data Source
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.