# U.S. measles cases surpass 4,000, with over 25 percent coming from Pennsylvania

> **Newsylist Open Intelligence Dossier** · First detected: 2026-10-11 06:29 UTC · Category: Health · Sources: 1 · Current Velocity: 0.75

## Key People, Organizations & Locations
Pennsylvania

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| Delawareonline.com | Measles outbreak in PA: Why can measles be fatal? | 2026-10-10 21:41 | [Source Link](https://news.google.com/rss/articles/CBMixwFBVV95cUxQODdhRC13WlpRZ2FHazg3b0RKQms2RFltSG5MbERBZ2NSRkcxV25nV2xaVWsxaE5sWWljY1hPNW9lYUN5eEd2NTRYbW15ckJab3lJTDJsdDVpMFZCQmhrS2N0QkJpRFZxdHJtY3ZxS3F0Y1prcW1ZZEE2X2R2OElFSFZ6YmFwMHJIYTY3YUNwTWxTR3g3OS04ZXRmOGdfdlBWSVZUQkdkTHVwZ0hsZ2NaOWVLeEkxOFdWcFp0dUpIVmZneEJmU2Y0?oc=5) |
| Delawareonline.com | What to know, do about measles cases in PA, Delaware | 2026-10-10 21:41 | [Source Link](https://news.google.com/rss/articles/CBMizAFBVV95cUxOaUM0TS0yLUNmQ3FhUjZZT1RtSEJldGNqT19LRFR6Q2Z1SG9WRnR0aFRSR0ZDZ0F2YjFTWEJmRmd3WlZnUlozY3lZSXBPTi14SmFoY0NpZy1ielF0RjRHNlpOWC1VZVA4ZGJ1MlJ4ZDJiRUROUENXWTN1Mi1Ra3BUN2tnSFhUOHFLS24wMk9saFlUQlFpRTZWQjVIdFpHTjAwU1Q0c3lycTZTSUcxUmVrWkFEYlc1cFRKcmVrYkRuTy1JN01xR1MtRnF4bUc?oc=5) |
| Delawareonline.com | Why PA. measles outbreak isn’t a seasonal concern | 2026-10-10 21:41 | [Source Link](https://news.google.com/rss/articles/CBMiywFBVV95cUxPSnRmU0l0ck56NlotY3Y4Y1FLOVZCZ2ZZbGhlU1B5M3N0azBoSWRNY1JXTld0ZzVqX1VpZW8xOGkyenJyOEFNVS0xVzhqaUJVTVEtSE9WM1RpZWNfVWhvV210RkRDMWlPRV9Mb05STEtRa0VKQktyazJQMHJEa0ZqMjZPbG50ZExhWFZiMmdCLW5DRHN0YmVUeVc0WUgzc08zeWx3a3ZFcHgtelgxbk4tQlpIbkpMTU80TjJoMmtTU2FpakJaV3dhSTQ3NA?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-10-11/u-s-measles-cases-surpass-4-000-with-over-25-percent-coming-from-pennsylvania*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*