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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.
C-reactive protein increased
4,956 total reports59.7% serious outcomes
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4,956
Total Reports
132
Deaths
2,826
Hospitalizations
59.7
Severity Rate
% serious outcomes
About C-reactive protein increased Reports
C-reactive protein increased has been reported 4,956 times in VAERS from 1990 to 2026.
Of these reports, 132 were associated with death (2.66%) and 2,826 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning C-reactive protein increased is 59.7%.
Understanding C-reactive protein increased in VAERS
•Temporal association only: These reports show C-reactive protein increased 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 C-reactive protein increased. 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
View all vaccines →Quick Facts
Reports:4,956
Deaths:132
Hospitalizations:2,826
Mortality Rate:2.66%
Severity Rate:59.7%
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.