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● LIVE Updated 11d ago · 15 sources tracked

New measles case reported in York County as outbreak grows in south central Pa.

Pennsylvania has reported 73 measles cases in 2026. The outbreak has spread to York and Northumberland counties, with Lancaster County reporting 4 additional cases in the last week. Health officials state vaccination is the best protection against the disease.

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What changed

The outbreak has expanded into York and Northumberland counties with 6 new cases reported this week.

Live updates

  1. Measles Outbreak Expands to York and Northumberland Counties in Pennsylvania

    Pennsylvania has reported 73 measles cases in 2026. The outbreak has spread to York and Northumberland counties, with Lancaster County reporting 4 additional cases in the last week. Health officials state vaccination is the best protection against the disease.

    What's confirmed:

    • Pennsylvania has reported 73 measles cases in 2026.
    • The measles outbreak has spread to York County.
    • Lancaster County saw 4 more measles cases in the past week.
    • Vaccination is the best protection against measles.
    • Pennsylvania reported 6 new measles cases this week.

    Still unconfirmed:

    • Measles cases have spread to Northumberland County.
    • Delaware County detected measles in wastewater samples.
    • The outbreak now spans six counties.
    • An out-of-state visitor was contagious between August 4 and August 12 and visited Adams, Clearfield, Lancaster, and York counties.
    confidence 80%