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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.

Body temperature increased

16,993 total reports9.4% serious outcomes
16,993
Total Reports
139
Deaths
1,464
Hospitalizations
9.4
Severity Rate
% serious outcomes

About Body temperature increased Reports

Body temperature increased has been reported 16,993 times in VAERS from 1990 to 2026.

Of these reports, 139 were associated with death (0.82%) and 1,464 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Body temperature increased is 9.4%.

Understanding Body temperature increased in VAERS

Temporal association only: These reports show Body temperature 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 Body temperature 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.