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.
1,108 adverse event reports (-5% vs 2011)
In 2012, 1,108 adverse event reports were filed for Influenza, Seasonal in VAERS. This represents 3.4% of all 32,816 reports for this vaccine.
Of these reports, 18 mentioned death, 63 involved hospitalization, 372 required ER visits, and 24 reported disability.
Compared to the average of 835 reports per year for this vaccine, 2012 was above average (+33%).
In 2012, 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 | 1,732 | 15 | 101 |
| 2014 | 1,349 | 8 | 102 |
| 2013 | 1,359 | 15 | 86 |
| 2012 ← current | 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.