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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.
SARS-CoV-2 test negative
14,459 total reports22.6% serious outcomes
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14,459
Total Reports
425
Deaths
2,837
Hospitalizations
22.6
Severity Rate
% serious outcomes
About SARS-CoV-2 test negative Reports
SARS-CoV-2 test negative has been reported 14,459 times in VAERS from 1990 to 2026.
Of these reports, 425 were associated with death (2.94%) and 2,837 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning SARS-CoV-2 test negative is 22.6%.
Understanding SARS-CoV-2 test negative in VAERS
•Temporal association only: These reports show SARS-CoV-2 test negative 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 SARS-CoV-2 test negative. 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. COVID1915,371
2. COVID19-2973
3. FLU4431
4. VARZOS302
5. UNK223
6. PNC1394
7. FLUX90
8. FLU386
9. TDAP81
10. HEPA72
Quick Facts
Reports:14,459
Deaths:425
Hospitalizations:2,837
Mortality Rate:2.94%
Severity Rate:22.6%
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.