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.
1,732 adverse event reports (+28% vs 2014)
In 2015, 1,732 adverse event reports were filed for Influenza, Seasonal in VAERS. This represents 5.3% of all 32,816 reports for this vaccine.
Of these reports, 15 mentioned death, 101 involved hospitalization, 434 required ER visits, and 25 reported disability.
Compared to the average of 835 reports per year for this vaccine, 2015 was above average (+107%).
In 2015, 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.
| Year | Reports | Deaths | Hosp. |
|---|---|---|---|
| 2025 | 369 | 3 | 27 |
| 2024 | 529 | 11 | 50 |
| 2023 | 1,160 | 12 | 95 |
| 2022 | 1,742 | 56 | 119 |
| 2021 | 1,430 | 24 | 86 |
| 2020 | 2,366 | 48 | 85 |
| 2019 | 822 | 27 | 135 |
| 2018 | 1,051 | 9 | 81 |
| 2017 | 2,254 | 10 | 48 |
| 2016 | 2,822 | 14 | 79 |
| 2015 ← current | 1,732 | 15 | 101 |
| 2014 | 1,349 | 8 | 102 |
| 2013 | 1,359 | 15 | 86 |
| 2012 | 1,108 | 18 | 63 |
| 2011 | 1,165 | 25 | 46 |
| 2010 | 1,204 | 10 | 74 |
| 2009 | 1,106 | 26 | 90 |
| 2008 | 640 | 3 | 50 |
| 2007 | 561 | 5 | 57 |
| 2006 | 448 | 7 | 42 |
| 2005 | 394 | 5 | 42 |
| 2004 | 276 | 4 | 43 |
| 2003 | 399 | 2 | 45 |
| 2002 | 284 | 5 | 23 |
| 2001 | 181 | 6 | 20 |
| 2000 | 148 | 1 | 18 |
| 1999 | 257 | 1 | 24 |
| 1998 | 228 | 3 | 22 |
| 1997 | 160 | 4 | 21 |
| 1996 | 164 | 3 | 14 |
| 1995 | 185 | 0 | 20 |
| 1994 | 514 | 8 | 61 |
| 1993 | 812 | 15 | 130 |
| 1992 | 459 | 25 | 90 |
| 1991 | 299 | 9 | 48 |
| 1990 | 68 | 1 | 17 |
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.