PA measles outbreak tops 1,000 cases, largest since disease was eliminated
Pennsylvania reported 1,066 outbreak-linked cases on Wednesday.

Measles isn’t just dangerous – it may erase your immune system
The measles vaccine may do more than we thought – and the growing number of outbreaks makes ensuring you’re protected ever more urgent.

Measles cases reach highest level in 35 years. See the charts
Measles cases have surged to a 35-year high in the United States, marking the largest outbreak in decades.
