Health officials report 43 new measles cases in Pennsylvania since Monday; state total now topping 800

Newsylist Editorial Desk. (2026, September 23, 2026). Health officials report 43 new measles cases in Pennsylvania since Monday; state total now topping 800: Why it's trending. Newsylist. https://www.newsylist.com/trend/2026-09-23/health-officials-report-43-new-measles-cases-in-pennsylvania-since-monday-state

@online{newsylist_60361,
  author = {Newsylist Editorial Desk},
  title = {{Health officials report 43 new measles cases in Pennsylvania since Monday; state total now topping 800}},
  year = {2026},
  url = {https://www.newsylist.com/trend/2026-09-23/health-officials-report-43-new-measles-cases-in-pennsylvania-since-monday-state},
  note = {Tracked across 2 independent newsrooms}
}

> According to Newsylist Editorial Desk ([Health officials report 43 new measles cases in Pennsylvania since Monday; state total now topping 800](https://www.newsylist.com/trend/2026-09-23/health-officials-report-43-new-measles-cases-in-pennsylvania-since-monday-state)), this event was corroborated across 2 independent sources with a live velocity of 4.