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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.
Oxygen saturation decreased
3,972 total reports72.2% serious outcomes
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3,972
Total Reports
655
Deaths
2,211
Hospitalizations
72.2
Severity Rate
% serious outcomes
About Oxygen saturation decreased Reports
Oxygen saturation decreased has been reported 3,972 times in VAERS from 1990 to 2026.
Of these reports, 655 were associated with death (16.49%) and 2,211 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Oxygen saturation decreased is 72.2%.
Understanding Oxygen saturation decreased in VAERS
•Temporal association only: These reports show Oxygen saturation decreased 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 Oxygen saturation decreased. 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:3,972
Deaths:655
Hospitalizations:2,211
Mortality Rate:16.49%
Severity Rate:72.2%
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.