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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.
Inflammation
9,373 total reports11.3% serious outcomes
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9,373
Total Reports
57
Deaths
1,000
Hospitalizations
11.3
Severity Rate
% serious outcomes
About Inflammation Reports
Inflammation has been reported 9,373 times in VAERS from 1990 to 2026.
Of these reports, 57 were associated with death (0.61%) and 1,000 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Inflammation is 11.3%.
Understanding Inflammation in VAERS
•Temporal association only: These reports show Inflammation 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 Inflammation. 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. COVID196,815
2. VARZOS865
3. PPV821
4. FLU3810
5. FLU4399
6. TDAP359
7. FLUX284
8. UNK197
9. PNC13196
10. HEPA191
Detailed Breakdowns
Quick Facts
Reports:9,373
Deaths:57
Hospitalizations:1,000
Mortality Rate:0.61%
Severity Rate:11.3%
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.