#herd-immunity

All articles tagged with "herd-immunity"

Allegheny County’s Measles Protection Is Eroding as Kindergarten Coverage Slips

Newly cited data suggest herd immunity for measles is already absent in roughly one-third of kindergarten classrooms in Allegheny County, underscoring how local declines in vaccination can narrow the margin of safety.

Key Takeaways

Medical Xpress says herd immunity for measles is absent in one in three kindergarten classrooms in Allegheny County.
The report cites data obtained by The Washington Post in January 2026.

DT Editorial Team·Apr 13, 2026·via medicalxpress.com

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.

Key Takeaways

1% annual MMR decline could trigger 17,000 cases and 36 deaths yearly
Measles requires 93-95% vaccination for herd immunity

DT Editorial Team·Mar 10, 2026·4 min read·via medicalxpress.com