# Pennsylvania measles cases surpass 100, now spreading in 7 counties - Pittsburgh Post-Gazette

> **Open Intelligence Dossier** · First detected: 2026-07-10 13:07 UTC · Category: Health

## Executive Summary
Measles infections in Pennsylvania have exceeded 100 cases, with the outbreak currently documented across seven counties.

## Intelligence Brief
The number of confirmed measles cases in Pennsylvania has now surpassed 100. Recent data indicates the virus is present in seven counties, including new reports of infections in Chester County and Lancaster County.


Coverage from the Pittsburgh Post-Gazette, WFMZ.com, and The Inquirer highlights the geographic expansion of the outbreak. Reports from The News Journal note that health officials in Delaware are monitoring the situation in neighboring Pennsylvania with concern.


Updates are expected regarding further containment efforts in the affected counties. Official health guidance and the total number of counties or jurisdictions involved remain areas of ongoing focus.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| Inquirer.com | 2 more measles cases were confirmed in Chester County | [Source Link](https://news.google.com/rss/articles/CBMilgFBVV95cUxOSFVSMVMyU0JuYzFseTBvS3Voc2x4Uk1aS3hGdkdNdnRaRmJ3ZktfWUptVW1rdEJzeTh1a3VRbW1lQ2g0a0lLTk1nNEhzc25CR3JjS193b2JDek5SdjB3bTlRenpaUmdkMkRreWZKc2labHdGbTNxRExFSkxQaUFfX1VFc1BrSWw1UEEyMUFRcUgyVzZIY0E?oc=5) |
| The News Journal | DE health officials 'on pins and needles' after measles cases in PA | [Source Link](https://news.google.com/rss/articles/CBMi7AFBVV95cUxQMHNpMGdkcl9IMG04NWY1Ukpaa2J3X1MxZWZZdDUtMDJhWWQ2RFVYamVCZEFEVDNVUXBCYnp1RTg3SUhFdmNKWGN5Y1dFVXlqN0p6Q2dxc3NiN2dCR20wbGZlRnozazJLTXFJcTR5T1NPUlZtSWRJdWRfNG9Xb1YtTGt2dEREb2wwZXpkaElFSGxreGR1UXA4Y1NzTDlUc3NaNDdJUTdlRk93MDNxVnR6NFdHUHRWYzZtWUl2YVV3ZTNkMWI1NU02ZVQtWHBnRHhsRUdlRnZNRi02eEFGQkdCNHJhM0ZUc080a1VMSQ?oc=5) |
| WFMZ.com | Measles cases surpass 100 in Pa. | [Source Link](https://news.google.com/rss/articles/CBMiwwFBVV95cUxQTDljLW5LcUhJbEdSNGFuVnZ1QTZucUt3M3o0d3pJRlNuVUFUYWVaWjZ1czJ0QkR6czZHWFRQb3BPYUVaZjh6NjQteXNiMmhCbGlfc01tM3hiZ0F1QUx2VHRDcW01bTNHd3B4SEI2T2xGQXo0Wk9KYmpOSlFCWUpuTmp1YzFLQUY2NDZaYmVLSk9TVzVVTzJmYTlpSVVocC1hYXdXYUlXS0hOYUZkMmRORjljZzVyZHFLMTVCV3U3N0JxTjQ?oc=5) |
| LancasterOnline | 7 new measles cases in Lancaster County in the past week | [Source Link](https://news.google.com/rss/articles/CBMi3wFBVV95cUxNcVZCdVVhT0R1OVFUTGVQWTF5VkROQlNjRmtBbEg3YndPbjZ4Y0RKeDVEbzlreWJ5SWNzQncyYmpQdm0yLVQxZTJOUXk2NVlScVNsU0RFcHdNblp3eU9GQkU0d2VuMmdOVWF1Q3MxOVExUS1neEM3cnZsTFlMcktmTG1yYzdZUGMwWnZpWTlLbEpGUVhYM2s0QzJiLUJrRGN0TWZaZ3RueUttZk0wSnNoWkM2TjJjdWxQUjh0d1FmNjB0eVByYkE4SjFRcG9VZUMzS0N0TlkyX0V6QmZHOXNn?oc=5) |
| Pittsburgh Post-Gazette | Pennsylvania measles cases surpass 100, now spreading in 7 counties | [Source Link](https://news.google.com/rss/articles/CBMilwFBVV95cUxQZ2toVjdzdU92ODZzMW5DU0F4TUpWbmR6SXNmcTBMUmJBVFlieGFFTjBLc2hCSU1sTTV4NElwdEtUVDQwQjYxaFowY2JNS3g3ay1FVFNBYlp5RWVmdFV0ZzdQQVlOa01pUVVFSHUwVlZDT3hTNWFaV2c4R1VDcC1VYmE5NTZjTkNSbV9Kb25OVzFWeE44X2hB?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-07-10/pennsylvania-measles-cases-surpass-100-now-spreading-in-7-counties-pittsburgh*