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Data source: VAERS (Vaccine Adverse Event Reporting System)

Data through 2026 · Updated quarterly

Built by TheDataProject.ai · © 2026 VaccineWatch

Important: VAERS accepts reports of adverse events following vaccination. For any given report, there is no certainty that the reported event was caused by the vaccine. Reports may contain information that is incomplete, inaccurate, coincidental, or unverifiable. Most reports to VAERS are voluntary, which means they are subject to biases. This data cannot be used to determine if vaccines cause or contribute to adverse events.

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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.

  1. Home
  2. Vaccines
  3. Influenza, Seasonal (Flumist Quadrivalent)
  4. 2024
Influenza, Seasonal (Flumist Quadrivalent)2024

Influenza, Seasonal (Flumist Quadrivalent) in 2024

35 adverse event reports (-48% vs 2023)

Share
35
Reports
0
Deaths
0
Hospitalizations
1
ER Visits
0
Disabilities
← 2023 (67 reports)

2024 Reporting Summary

In 2024, 35 adverse event reports were filed for Influenza, Seasonal (Flumist Quadrivalent) in VAERS. This represents 1.0% of all 3,467 reports for this vaccine.

Of these reports, 0 mentioned death, 0 involved hospitalization, 1 required ER visits, and 0 reported disability.

Compared to the average of 362 reports per year for this vaccine, 2024 was below average (-90%).

💡 What This Means

In 2024, reporting for Influenza, Seasonal (Flumist Quadrivalent) was within typical ranges. As always, VAERS data reflects reports filed, not confirmed adverse events. Trends should be interpreted alongside vaccination volume and population health data.

All Years for Influenza, Seasonal (Flumist Quadrivalent)

YearReportsDeathsHosp.
20236727
20227504
20216205
20205000
20176103
2016470118
2015872729
20141,185442
2013413024

Understanding Yearly Data

•Spikes may reflect awareness: Years with unusual activity (e.g., pandemic) often see increased reporting.
•Dose volume matters: More vaccinations given in a year naturally leads to more reports.
•Reporting lag: Some events are reported months after they occur, so recent years may be incomplete.

Quick Facts

Reports:35
Deaths:0
Hospitalizations:0
% of Total:1.0%
Rank (by vol.):#0 of 9 years
Avg/year:362

Related Pages

Influenza, Seasonal (Flumist Quadrivalent) Overview← 2023 Reports35 Years of ReportingCompare Vaccines

Data Source

This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.