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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.
Abortion spontaneous
2,369 total reports8.7% serious outcomes
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2,369
Total Reports
3
Deaths
203
Hospitalizations
8.7
Severity Rate
% serious outcomes
About Abortion spontaneous Reports
Abortion spontaneous has been reported 2,369 times in VAERS from 1990 to 2026.
Of these reports, 3 were associated with death (0.13%) and 203 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Abortion spontaneous is 8.7%.
Understanding Abortion spontaneous in VAERS
•Temporal association only: These reports show Abortion spontaneous 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 Abortion spontaneous. 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. COVID191,775
2. HPV4426
3. FLU3252
4. FLU(H1N1)126
5. VARCEL117
6. TDAP69
7. MNQ50
8. ANTH48
9. FLU448
10. UNK45
Quick Facts
Reports:2,369
Deaths:3
Hospitalizations:203
Mortality Rate:0.13%
Severity Rate:8.7%
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.