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.
2,526 adverse event reports (+41% vs 2018)
In 2019, 2,526 adverse event reports were filed for Measles, Mumps & Rubella (MMR II) in VAERS. This represents 2.8% of all 89,976 reports for this vaccine.
Of these reports, 8 mentioned death, 93 involved hospitalization, 326 required ER visits, and 65 reported disability.
Compared to the average of 2,391 reports per year for this vaccine, 2019 was above average (+6%).
In 2019, reporting for Measles, Mumps & Rubella (MMR II) 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 | 1,629 | 3 | 60 |
| 2024 | 1,571 | 12 | 40 |
| 2023 | 1,362 | 3 | 35 |
| 2022 | 1,385 | 2 | 30 |
| 2021 | 1,431 | 5 | 46 |
| 2020 | 1,205 | 5 | 55 |
| 2019 ← current | 2,526 | 8 | 93 |
| 2018 | 1,787 | 3 | 57 |
| 2017 | 2,514 | 2 | 80 |
| 2016 | 2,744 | 7 | 81 |
| 2015 | 3,162 | 15 | 85 |
| 2014 | 2,502 | 2 | 83 |
| 2013 | 2,231 | 3 | 74 |
| 2012 | 2,353 | 12 | 113 |
| 2011 | 2,513 | 11 | 138 |
| 2010 | 3,148 | 5 | 144 |
| 2009 | 3,145 | 30 | 159 |
| 2008 | 3,248 | 11 | 134 |
| 2007 | 2,275 | 8 | 105 |
| 2006 | 3,479 | 15 | 161 |
| 2005 | 3,785 | 10 | 159 |
| 2004 | 4,178 | 7 | 165 |
| 2003 | 4,158 | 10 | 166 |
| 2002 | 3,604 | 9 | 161 |
| 2001 | 3,083 | 16 | 189 |
| 2000 | 2,470 | 10 | 155 |
| 1999 | 2,167 | 18 | 163 |
| 1998 | 1,926 | 9 | 151 |
| 1997 | 2,064 | 12 | 176 |
| 1996 | 2,004 | 12 | 182 |
| 1995 | 2,066 | 11 | 219 |
| 1994 | 2,053 | 11 | 218 |
| 1993 | 1,803 | 13 | 188 |
| 1992 | 2,134 | 17 | 211 |
| 1991 | 2,143 | 10 | 226 |
| 1990 | 228 | 5 | 44 |
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.