⚠️

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 (Flulaval Quadrivalent)2013

Influenza, Seasonal (Flulaval Quadrivalent) in 2013

391 adverse event reports

391

Reports

Deaths

Hospitalizations

147

ER Visits

Disabilities

2014 (1,264 reports) →

2013 Reporting Summary

In 2013, 391 adverse event reports were filed for Influenza, Seasonal (Flulaval Quadrivalent) in VAERS. This represents 0.8% of all 52,111 reports for this vaccine.

Of these reports, 5 mentioned death, 22 involved hospitalization, 147 required ER visits, and 3 reported disability.

Compared to the average of 3,877 reports per year for this vaccine, 2013 was below average (-90%).

💡 What This Means

In 2013, reporting for Influenza, Seasonal (Flulaval 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 (Flulaval Quadrivalent)

Year	Reports	Deaths	Hosp.
2025	433	3	11
2024	1,723	15	74
2023	5,780	46	318
2022	6,166	47	350
2021	5,469	45	201
2020	6,664	25	198
2019	4,827	11	210
2018	6,152	30	256
2017	5,231	10	223
2016	4,193	20	203
2015	2,112	7	102
2014	1,264	6	55
2013 ← current	391	5	22

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:391

Deaths:5

Hospitalizations:22

% of Total:0.8%

Rank (by vol.):#13 of 13 years

Avg/year:3,877

Influenza, Seasonal (Flulaval Quadrivalent) Overview 2014 Reports →35 Years of Reporting Compare Vaccines

Data Source

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

2013 Reporting Summary

In 2013, 391 adverse event reports were filed for Influenza, Seasonal (Flulaval Quadrivalent) in VAERS. This represents 0.8% of all 52,111 reports for this vaccine.

Of these reports, 5 mentioned death, 22 involved hospitalization, 147 required ER visits, and 3 reported disability.

Compared to the average of 3,877 reports per year for this vaccine, 2013 was below average (-90%).