A 1% Drop in Measles Vaccination Could Cause 17,000 Annual Cases
A new report warns that even a 1% annual decline in MMR vaccination rates could trigger 17,000 measles cases, 4,000 hospitalizations, and 36 preventable deaths each year in the U.S.
- 1% annual MMR decline could trigger 17,000 cases and 36 deaths yearly
- Measles requires 93-95% vaccination for herd immunity
- Several U.S. states already below 90% kindergarten MMR coverage
- Geographic clustering of unvaccinated populations amplifies outbreak risk











