In February 2026, the McCullough Foundation research team published Deaths Following MMR and MMRV Vaccination in the United States, analyzing U.S. death reports submitted to the CDC/FDA Vaccine Adverse Event Reporting System (VAERS) from 1995 to 2025.
Our study identified:
- 299 U.S. death reports following MMR/MMRV vaccination.
- 193 reports with identifiable dates since 1995, compared with just 7 CDC-documented measles deaths during that period.
- 52.8% of reported deaths occurred within 14 days of vaccination.
- 60.9% involved children under 2 years old.
- Frequently reported presentations included sudden unexplained death, seizures, cardiac arrest, and encephalitis.
The 2026 Update
We have now updated our historical comparison to incorporate newly reported 2026 figures.
From 1995 to 2026:
MMR/MMRV: 198 U.S. VAERS death reports with identifiable dates
Measles infection: 11 CDC-counted deaths
That represents 1,700% more deaths following measles vaccination than CDC-counted measles deaths since 1995.
