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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.

Pallor

21,329 total reports9.2% serious outcomes
21,329
Total Reports
201
Deaths
1,761
Hospitalizations
9.2
Severity Rate
% serious outcomes

About Pallor Reports

Pallor has been reported 21,329 times in VAERS from 1990 to 2026.

Of these reports, 201 were associated with death (0.94%) and 1,761 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Pallor is 9.2%.

Understanding Pallor in VAERS

Temporal association only: These reports show Pallor 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 Pallor. 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:21,329
Deaths:201
Hospitalizations:1,761
Mortality Rate:0.94%
Severity Rate:9.2%

Data Source

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