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.
#1826 most reported symptom for this vaccine
Type IV hypersensitivity reaction has been reported 7 times in association with Influenza, Seasonal (Fluvirin) vaccination in VAERS. This represents 0.0% of all 119,695 reports for this vaccine.
Among these reports, 0 mentioned death (0.00%) and 4 involved hospitalization (57.1%).
Type IV hypersensitivity reaction is the #1826 most frequently reported symptom for Influenza, Seasonal (Fluvirin) out of 3021 total symptoms.
Disclaimer: VAERS reports describe events that occurred after vaccination but do not establish that the vaccine caused the event. Many reported symptoms may be coincidental or related to underlying conditions.
Seeing 7 reports of Type IV hypersensitivity reaction after Influenza, Seasonal (Fluvirin) vaccination may seem alarming, but context is critical. With 119,695 total reports for this vaccine (representing many millions of doses), Type IV hypersensitivity reaction appears in only 0.0% of reports.
The mortality rate among these reports is very low at 0.00%, suggesting most cases are non-fatal.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.