A 40-year-old woman in Jefferson County, Pennsylvania, has died from complications associated with measles, local authorities said, bringing the state’s reported total for measles-related deaths this year to three.
Jefferson County coroner Greg Furlong said the woman died on Saturday 12 September. Her identity has not been released, and officials have not confirmed her vaccination status.
Furlong described the death as measles-related and said no further information about the case would be made public. Jefferson County is a rural area about 80 miles north-east of Pittsburgh.
The two previous deaths reported in Pennsylvania this year involved infants who were too young to receive the routine measles, mumps and rubella (MMR) vaccine, which is normally first given at around 12 months.
One infant, a six-week-old girl, died after contracting measles while suffering from a serious genetic condition. In the other case, measles was recorded as a significant condition when an infant boy died from a ruptured spleen.
Pennsylvania measles outbreak
Pennsylvania health officials reported 676 confirmed measles cases across 37 counties as of Friday 11 September, with 124 people requiring hospital treatment. Four of those infected had been vaccinated, according to state health authorities. ([cbsnews.com](https://www.cbsnews.com/philadelphia/news/measles-pennsylvania-cases-vaccinated/))
The state Department of Health said it had administered more than 3,900 MMR vaccinations through more than 100 pop-up clinics since the outbreak began in late April. It said two doses of the vaccine provide 97 per cent protection against measles. ([pa.gov](https://www.pa.gov/agencies/health/newsroom/pa-department-of-health-provides-statewide-update-on-measles-out))
The reported deaths have not been reflected in the federal tally. The US Centers for Disease Control and Prevention said its National Center for Health Statistics had no 2026 death records listing measles as the underlying cause, while noting that it was working on a standard definition for classifying measles deaths. ([cdc.gov](https://cdc.gov/measles/data-research/index.html))
As of 10 September, the CDC had recorded 3,294 confirmed measles cases across the United States this year. It said state health departments lead investigations and may report figures on a different timetable from the federal agency. ([cdc.gov](https://cdc.gov/measles/data-research/index.html))
