PA measles outbreak tops 1,000 cases, largest since disease was eliminated

The measles outbreak in Pennsylvania has surpassed 1,000 cases, marking the highest number since the disease was eliminated in the US in 2000.

The state reported 1,066 outbreak-linked cases on Wednesday, with the majority occurring among unvaccinated individuals.

The outbreak has led to the quarantine of students and staff at several schools, and some counties have implemented vaccination requirements for students.

The outbreak has also led to the declaration of a disaster emergency by the state's acting health secretary.