- Four fully vaccinated people test positive for measles, DOH says wgal.com
- Opinion | What Pennsylvania’s measles response laid bare The Washington Post
- As diseases loom, CDC’s response to measles deaths stirs fears about agency’s reliability NPR
- Coroner shares details on 2 infant deaths amid Pennsylvania measles outbreak USA Today
- As outbreak intensifies, Pennsylvania surpasses all U.S. states in measles cases and hospitalizations post-gazette.com