Lancaster County remains at center of Pennsylvania measles surge

Lancaster County remains the largest reported concentration point in Pennsylvania’s 2026 measles surge. Pennsylvania had reported 142 measles cases through July 27, according to Axios Philadelphia. The report said Lancaster County accounted for roughly 60% of the statewide total, but that percentage should not be converted into an exact county case count.

The latest county-level figure should come from the Pennsylvania Department of Health measles dashboard. Case totals can change as reports are confirmed, updated or added.

Why earlier reports showed different numbers

A July 20 report from 90.5 WESA cited 63 Lancaster County cases since January. That was a dated snapshot, not a competing estimate of the July 27 statewide total. The newer figure covers Pennsylvania cases reported through July 27, while the Axios report described Lancaster County as an approximate share of that total.

Axios also reported 26 hospitalizations and no deaths in Pennsylvania this year as of its July 28 report. Lancaster County is part of the Lancaster-Lebanon public-health response region, where state and local officials have focused on vaccination access, outreach and provider education.

How residents can follow the numbers

The state dashboard tracks cases by county and includes information such as age, hospitalization and vaccination status. It is not a real-time feed. The Department of Health says it updates the dashboard on Monday, Wednesday and Friday afternoons with the latest available data.

The department reported July 14 that state health-center staff had administered more than three times as many measles vaccinations in Lancaster County in 2026 as during all of 2025. Pop-up clinics had provided more than 600 doses to county residents since cases were first identified there in late April.

What residents should do

Two doses of measles, mumps and rubella vaccine provide the best protection. Residents should check their vaccination records or ask a health-care provider whether they have received both doses. People who were vaccinated in Pennsylvania can request state immunization records. If records cannot be found, WESA reported that a health-care provider can discuss whether an antibody test is appropriate.

Symptoms can appear seven to 21 days after exposure. Watch for fever, cough, runny nose, red or watery eyes and a rash that often begins on the head and spreads downward. Anyone who may have been exposed or develops symptoms should contact a health-care provider promptly and explain the possible measles exposure. Call before arriving at a clinic or emergency department so staff can provide instructions that reduce the risk of exposing other patients.

Who needs extra caution

Infants younger than 12 months are not on the routine MMR schedule. During the current outbreak, however, Pennsylvania has authorized providers to give some infants ages 6 to 11 months an early dose for temporary protection; families should ask a health-care provider whether that guidance applies. The early dose does not replace the routine doses later in childhood.

Pregnant people who are not immune and residents with weakened immune systems should contact a medical professional promptly after a possible exposure because management may differ. Lancaster County advises people who may have been exposed and are not immune to take precautions around unvaccinated or medically vulnerable household members while awaiting guidance.

The next developments to watch are the scheduled dashboard updates, official exposure notices, new vaccination opportunities and any changes in guidance from Lancaster County or the Pennsylvania Department of Health. Residents should check the date attached to each case count rather than compare figures without noting when they were reported.

Sources

• Pennsylvania Department of Health measles dashboard and guidance
• Lancaster County measles information page
• Axios Philadelphia report on Pennsylvania measles cases
• 90.5 WESA report on Pennsylvania measles dashboard