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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.

Cardiac arrest

3,355 total reports100.0% serious outcomes
3,355
Total Reports
2,457
Deaths
1,615
Hospitalizations
100
Severity Rate
% serious outcomes

About Cardiac arrest Reports

Cardiac arrest has been reported 3,355 times in VAERS from 1990 to 2026.

Of these reports, 2,457 were associated with death (73.23%) and 1,615 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Cardiac arrest is 100.0%.

Understanding Cardiac arrest in VAERS

Temporal association only: These reports show Cardiac arrest 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 Cardiac arrest. 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:3,355
Deaths:2,457
Hospitalizations:1,615
Mortality Rate:73.23%
Severity Rate:100.0%

Data Source

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