Measles outbreak in multiple states potentially exposes thousands
More states are battling measles outbreaks, as the number of nationwide cases reaches its highest count in more than 30 years.
TL;DR
- Nationwide measles cases have reached their highest count in over 30 years, with 2,777 confirmed cases as of August 20.
- Maryland, Iowa, and Pennsylvania are experiencing significant measles outbreaks, with Maryland confirming 31 cases in 2026 and Iowa investigating potential exposures at multiple locations.
- Pennsylvania has reported its first measles deaths in 35 years, with both unvaccinated individuals residing in Lancaster County.
- The majority of measles cases in 2025 and 2026 were in individuals not fully vaccinated with the MMR vaccine.
- Nationwide vaccination rates for kindergarteners are below the 95% threshold for herd immunity, with exemptions on the rise.
- Measles is highly contagious and can cause severe complications, including pneumonia and brain swelling, especially in unvaccinated individuals.