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.
#326 most reported symptom for this vaccine
Acute respiratory failure has been reported 3 times in association with Influenza, Seasonal (Flublok Quadrivalent) vaccination in VAERS. This represents 0.1% of all 3,407 reports for this vaccine.
Among these reports, 1 mentioned death (33.33%) and 3 involved hospitalization (100.0%).
Acute respiratory failure is the #326 most frequently reported symptom for Influenza, Seasonal (Flublok Quadrivalent) out of 377 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 3 reports of Acute respiratory failure after Influenza, Seasonal (Flublok Quadrivalent) vaccination may seem alarming, but context is critical.
The 33.33% mortality rate among these reports is elevated, but this reflects the severity of the condition itself rather than vaccine causation.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.