- In Amish country, nurses go door to door to stop deadly spread of measles bbc.com
- Why the CDC is excluding measles deaths in Pennsylvania even as outbreak appears to be ‘accelerating’ The Guardian
- Health officials report 43 new measles cases in Pennsylvania since Monday; state total now topping 800 6abc Philadelphia
- Measles cases in Pa. surpass 800 as outbreak continues to surge Pittsburgh Post-Gazette
- Pa. Measles Outbreak Met With Both Defiance and a Rush to Vaccinate The New York Times