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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.

Acute respiratory failure

6,791 total reports100.0% serious outcomes
6,791
Total Reports
1,446
Deaths
6,384
Hospitalizations
100
Severity Rate
% serious outcomes

About Acute respiratory failure Reports

Acute respiratory failure has been reported 6,791 times in VAERS from 1990 to 2026.

Of these reports, 1,446 were associated with death (21.29%) and 6,384 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Acute respiratory failure is 100.0%.

Understanding Acute respiratory failure in VAERS

Temporal association only: These reports show Acute respiratory failure 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 Acute respiratory failure. 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.