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
About Influenza, Seasonal
Influenza, Seasonal has 32,816 reports in VAERS spanning from 1990 to 2026.
Of these reports, 491 mentioned death, 2,538 involved hospitalization, and 7,898 required emergency department visits.
This vaccine is manufactured by: Unknown Manufacturer, Pfizer / Wyeth, Sanofi Pasteur, Novartis, CSL Limited.
This vaccine accounts for 1.7% of all 1,983,260 reports in the VAERS database.
Reporting Rate
This vaccine averages 887 reports per year over 37 years of reporting (1990–2026).
Understanding These Numbers
Most Reported Symptoms
Top Reporting States
Explore Further
Related Analysis
Data Source
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.