Overview
- Pennsylvania reported the milestone on Monday, Oct. 5, with 1,004 confirmed cases in 39 counties, about 198 hospitalizations and five deaths, the state health department said.
- The outbreak is concentrated in Lancaster County, where 391 cases have been recorded, and has spread through under‑vaccinated communities including large Amish populations.
- Gov. Kathy Hochul declared a State Disaster Emergency on Oct. 5 to allow paramedics, advanced EMS, pharmacists and midwives to vaccinate and to let nurses order measles tests to speed response in New York.
- The CDC says it stands ready to deploy an Epi‑Aid team if Pennsylvania formally requests federal epidemiologic support and has been reviewing state reports of measles‑associated deaths.
- Nationally, the U.S. is experiencing its worst measles year since 1991 with roughly 3,800–3,900 cases, driven by falling MMR coverage and raising concerns about regional measles‑free status and continued cross‑state spread.