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Transparent access to VAERS data for informed decision-making. We present the data as-is, with appropriate context and disclaimers.

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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.

⚠️

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
  4. 2018
Influenza, Seasonal2018

Influenza, Seasonal in 2018

1,051 adverse event reports (-53% vs 2017)

Share
1,051
Reports
9
Deaths
81
Hospitalizations
132
ER Visits
18
Disabilities
← 2017 (2,254 reports)2019 (822 reports) →

2018 Reporting Summary

In 2018, 1,051 adverse event reports were filed for Influenza, Seasonal in VAERS. This represents 3.2% of all 32,816 reports for this vaccine.

Of these reports, 9 mentioned death, 81 involved hospitalization, 132 required ER visits, and 18 reported disability.

Compared to the average of 835 reports per year for this vaccine, 2018 was above average (+26%).

💡 What This Means

In 2018, reporting for Influenza, Seasonal 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

YearReportsDeathsHosp.
2025369327
20245291150
20231,1601295
20221,74256119
20211,4302486
20202,3664885
201982227135
2018 ← current1,051981
20172,2541048
20162,8221479
20151,73215101
20141,3498102
20131,3591586
20121,1081863
20111,1652546
20101,2041074
20091,1062690
2008640350
2007561557
2006448742
2005394542
2004276443
2003399245
2002284523
2001181620
2000148118
1999257124
1998228322
1997160421
1996164314
1995185020
1994514861
199381215130
19924592590
1991299948
199068117

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:1,051
Deaths:9
Hospitalizations:81
% of Total:3.2%
Rank (by vol.):#14 of 36 years
Avg/year:835

Related Pages

Influenza, Seasonal Overview← 2017 Reports2019 Reports →35 Years of ReportingCompare Vaccines

Data Source

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