⚠️
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.
Hemiparesis
2,119 total reports67.0% serious outcomes
Share
2,119
Total Reports
125
Deaths
1,294
Hospitalizations
67
Severity Rate
% serious outcomes
About Hemiparesis Reports
Hemiparesis has been reported 2,119 times in VAERS from 1990 to 2026.
Of these reports, 125 were associated with death (5.90%) and 1,294 involved hospitalization.
The overall serious outcome rate (death or hospitalization) for reports mentioning Hemiparesis is 67.0%.
Understanding Hemiparesis in VAERS
•Temporal association only: These reports show Hemiparesis 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 Hemiparesis. 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 →Detailed Breakdowns
Quick Facts
Reports:2,119
Deaths:125
Hospitalizations:1,294
Mortality Rate:5.90%
Severity Rate:67.0%
Related Analysis
Explore Further
Data Source
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.