An adult woman died of measles complications in Pennsylvania, marking the third measles-associated death reported during a rapidly growing outbreak in the state. The 40-year-old woman lived in Jefferson County and died Saturday, according to the county coroner, who confirmed that she had not been vaccinated against measles.
The Jefferson County Coroner’s Office said it was working with the Pennsylvania Department of Health to review the case. Coroner Greg Furlong told CNN that the woman contracted measles after a family member became infected.
The death adds to an outbreak that has already produced hundreds of cases and renewed a political dispute between Pennsylvania officials and the federal government over the response to measles and the role of the US Centers for Disease Control and Prevention.
The woman had underlying respiratory conditions, including chronic obstructive pulmonary disease and asthma. She had also been using supplemental oxygen around the clock before contracting measles, according to Furlong.
The circumstances surrounding her death underscore that measles can cause serious illness in adults as well as children, particularly when patients have other health challenges. The CDC describes measles as a highly contagious viral disease that can cause complications affecting the respiratory system and other parts of the body.
Pennsylvania’s latest death comes as the state continues to manage an outbreak centered in Lancaster County. As of Friday, the outbreak had reached 676 reported cases, including 108 new cases during the preceding week. A total of 124 people had been hospitalized.
The outbreak has also become a point of political tension after disagreements between Pennsylvania Gov. Josh Shapiro and US Health and Human Services Secretary Robert F. Kennedy Jr. over the state’s response and the role of federal health officials.
Pennsylvania measles outbreak grows as third death is reported
The Jefferson County death follows two measles-associated deaths in Lancaster County reported at the end of August. Those deaths represented the first measles-associated fatalities reported in Pennsylvania in 35 years.
The two Lancaster County cases involved infants, although the county coroner disputed whether measles caused one of the deaths.
County Coroner Dr. Stephen Diamantoni said a newborn died from a ruptured spleen after a forensic pathologist determined that measles was not responsible for that condition. A second infant, who was six weeks old and had Amish lethal microcephaly, died from measles, Diamantoni said.
The distinction became particularly important as Pennsylvania officials and federal health authorities debated the number and circumstances of measles-associated deaths in the state. The disagreement illustrates how cause-of-death determinations can become central to the public understanding of an infectious-disease outbreak.
The newly reported death in Jefferson County is being reviewed separately. The county coroner said the woman had not received a measles vaccination and had contracted the virus following exposure to an infected family member.
Pennsylvania health officials said they were communicating with the coroner and conducting their own review. The department said it would provide updated information when it becomes available.
The outbreak’s scale has changed rapidly. Lancaster County remains the center of transmission, while the growing number of cases has resulted in hundreds of hospitalizations across the state.
Measles spreads extremely easily among people who lack immunity. The illness can begin with fever and respiratory symptoms before the characteristic rash develops. Some patients recover without major complications, but severe disease can lead to pneumonia, brain inflammation and death.
The CDC estimates that about one in five unvaccinated people who contract measles will require hospitalization. Among children who become infected, approximately one in 20 develops pneumonia, while about one in 1,000 develops encephalitis, or brain swelling. The virus kills roughly one to three children for every 1,000 who become infected.
The agency provides detailed information about symptoms and complications through its <a href=”https://www.cdc.gov/measles/signs-symptoms/index.html” target=”_blank” rel=”noopener noreferrer”>measles symptoms and complications guidance</a>.
Those risks help explain why health officials continue to emphasize vaccination as the primary way to prevent measles transmission and severe disease.
Federal and Pennsylvania officials clash over measles response
The latest death also arrived as federal and state officials publicly disagreed about Pennsylvania’s cooperation with the CDC.
Dr. Erica Schwartz, the newly confirmed CDC director, said the agency had not been notified by Pennsylvania officials about the Jefferson County death when she issued a statement about the outbreak.
Schwartz said the CDC had repeatedly offered assistance through an Epi-Aid, a federal response mechanism that can send epidemiologists and other specialists to help state and local health authorities investigate and contain outbreaks.
According to Schwartz, Pennsylvania had not formally requested an Epi-Aid. She contrasted the state’s position with Texas, South Carolina, Virginia, Kansas, New Mexico and Wisconsin, which she said had requested CDC assistance for their measles outbreaks.
The CDC has emphasized that its teams remain available to Pennsylvania if state officials request federal support.
The disagreement follows an earlier dispute involving Gov. Josh Shapiro and Kennedy.
When Pennsylvania announced the two Lancaster County measles-associated deaths in August, Shapiro said he had declined an offer of federal assistance from Kennedy. The governor argued that Kennedy’s public statements and actions, including his comments about vaccines, were harming communities.
Kennedy responded publicly by accusing Shapiro of fearmongering and using infectious disease as a political issue. He also questioned whether the two reported infant deaths were actually caused by measles.
The disagreement intensified because one of the Lancaster County deaths had already been disputed by the county coroner. Diamantoni maintained that the newborn with the ruptured spleen did not die from measles, while he determined that the second infant’s death was caused by the infection.
The competing statements have placed additional attention on how state and federal agencies communicate during an outbreak. They also demonstrate how disagreements over individual cases can quickly become part of a broader political argument about vaccination, public health policy and federal involvement.
For Pennsylvania residents, however, the expanding number of infections remains the central public health concern. The state’s health department is continuing to review cases while the outbreak produces additional hospitalizations.
The Pennsylvania Department of Health provides public health information and disease-related guidance through its <a href=”https://www.pa.gov/agencies/health” target=”_blank” rel=”noopener noreferrer”>official health department resources</a>.
Why measles vaccination remains central to preventing severe disease
The death of the Jefferson County woman has drawn attention to the risks measles poses outside childhood. Although measles is often associated with young children, severe complications can occur at any age.
In this case, the woman already had significant respiratory conditions and required supplemental oxygen before becoming infected. Those circumstances make the case different from a healthy adult with no underlying respiratory disease, and the available information does not establish how much each condition contributed to the outcome.
Nevertheless, the coroner emphasized that measles can cause severe respiratory illness, hospitalization and, in rare cases, death.
The outbreak also demonstrates the importance of maintaining immunity in communities. When vaccination coverage falls, measles can spread rapidly because the virus is highly contagious and can infect people who have no immunity.
The measles, mumps and rubella vaccine, commonly known as MMR, is the principal protection against measles. The CDC says two doses provide about 97% protection against the disease.
The vaccine has been used since 1963, and the CDC states that it has a strong safety record. Most vaccine side effects are mild and resolve on their own. More information is available through the agency’s <a href=”https://www.cdc.gov/measles/vaccines/index.html” target=”_blank” rel=”noopener noreferrer”>MMR vaccination information</a>.
The World Health Organization likewise identifies vaccination as the most effective way to prevent measles and notes that the disease can lead to serious complications, particularly among people who lack adequate immunity. Its <a href=”https://www.who.int/news-room/fact-sheets/detail/measles” target=”_blank” rel=”noopener noreferrer”>measles fact sheet</a> outlines the disease’s transmission, complications and prevention.
Pennsylvania’s outbreak is therefore unfolding on two fronts: health officials are working to identify and control infections, while state and federal authorities continue to disagree over the appropriate level of federal involvement.
The Jefferson County woman’s death adds another severe outcome to that already expanding outbreak. State officials said their review of the case remains underway and that additional information will be provided as it becomes available.
