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.
Influenza, Seasonal (Flublok Quadrivalent) has 3,407 reports in VAERS spanning from 1990 to 2026. Of these reports, 10 mentioned death, 86 involved hospitalization, and 290 required emergency department visits. This vaccine is manufactured by: Protein Sciences Corporation. This vaccine accounts for 0.2% of all 1,983,260 reports in the VAERS database.
Influenza, Seasonal (Flublok Quadrivalent) has 3,407 reports in VAERS spanning from 1990 to 2026.
Of these reports, 10 mentioned death, 86 involved hospitalization, and 290 required emergency department visits.
This vaccine is manufactured by: Protein Sciences Corporation.
This vaccine accounts for 0.2% of all 1,983,260 reports in the VAERS database.
This vaccine averages 341 reports per year over 10 years of reporting (2017–2026).
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.