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.
#144 most reported symptom for this vaccine
Influenza virus test negative has been reported 237 times in association with Influenza, Seasonal (Flulaval Quadrivalent) vaccination in VAERS. This represents 0.5% of all 52,111 reports for this vaccine.
Among these reports, 4 mentioned death (1.69%) and 42 involved hospitalization (17.7%).
Influenza virus test negative is the #144 most frequently reported symptom for Influenza, Seasonal (Flulaval Quadrivalent) out of 2354 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 237 reports of Influenza virus test negative after Influenza, Seasonal (Flulaval Quadrivalent) vaccination may seem alarming, but context is critical.
The mortality rate of 1.69% warrants monitoring, though VAERS deaths represent temporal associations, not confirmed causal links.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.