- Lingering distrust, low vaccine rates threaten containment of Lancaster measles outbreak Pittsburgh Post-Gazette
- Pennsylvania measles outbreak grows to 72 cases among children and adults WHYY
- Doctors warn of severe adult measles cases as Lancaster County outbreak grows LancasterOnline
- Pennsylvania health officials address measles outbreak: ‘We will not slow down until this … is over.’ Inquirer.com
- Officials provide update on state’s response to measles outbreak WGAL
