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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.
Night sweats
5,046 total reports7.3% serious outcomes
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5,046
Total Reports
21
Deaths
348
Hospitalizations
7.3
Severity Rate
% serious outcomes
About Night sweats Reports
Night sweats has been reported 5,046 times in VAERS from 1990 to 2026.
Of these reports, 21 were associated with death (0.42%) and 348 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Night sweats is 7.3%.
Understanding Night sweats in VAERS
•Temporal association only: These reports show Night sweats 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 Night sweats. 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
1. COVID194,210
2. VARZOS287
3. FLU3217
4. PPV179
5. HPV4139
6. SMALL132
7. ANTH119
8. FLU4108
9. TDAP106
10. FLUX99
Detailed Breakdowns
Quick Facts
Reports:5,046
Deaths:21
Hospitalizations:348
Mortality Rate:0.42%
Severity Rate:7.3%
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.