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.
Measles, Mumps & Rubella (MMR II)
Manufacturers:
About Measles, Mumps & Rubella (MMR II)
Measles, Mumps & Rubella (MMR II) has 89,976 reports in VAERS spanning from 1990 to 2026.
Of these reports, 497 mentioned death, 5,174 involved hospitalization, and 33,302 required emergency department visits.
This vaccine is manufactured by: Merck & Co., Unknown Manufacturer, GlaxoSmithKline.
This vaccine accounts for 4.5% of all 1,983,260 reports in the VAERS database.
Reporting Rate
This vaccine averages 2,432 reports per year over 37 years of reporting (1990–2026).
Understanding These Numbers
Most Reported Symptoms
Top Reporting States
Reports by Year
Explore Further
Related Analysis
Data Source
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.