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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.

Asthenia

68,739 total reports21.3% serious outcomes
68,739
Total Reports
1,749
Deaths
12,870
Hospitalizations
21.3
Severity Rate
% serious outcomes

About Asthenia Reports

Asthenia has been reported 68,739 times in VAERS from 1990 to 2026.

Of these reports, 1,749 were associated with death (2.54%) and 12,870 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Asthenia is 21.3%.

Understanding Asthenia in VAERS

Temporal association only: These reports show Asthenia 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 Asthenia. 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.

Quick Facts

Reports:68,739
Deaths:1,749
Hospitalizations:12,870
Mortality Rate:2.54%
Severity Rate:21.3%

Data Source

This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.