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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.

Intussusception

2,750 total reports87.2% serious outcomes
2,750
Total Reports
22
Deaths
2,375
Hospitalizations
87.2
Severity Rate
% serious outcomes

About Intussusception Reports

Intussusception has been reported 2,750 times in VAERS from 1990 to 2026.

Of these reports, 22 were associated with death (0.80%) and 2,375 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Intussusception is 87.2%.

Understanding Intussusception in VAERS

Temporal association only: These reports show Intussusception 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 Intussusception. 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:2,750
Deaths:22
Hospitalizations:2,375
Mortality Rate:0.80%
Severity Rate:87.2%

Data Source

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