Pennsylvania health officials confirmed the state’s fifth measles-associated death on Wednesday, marking the latest fatality in a worsening outbreak that has sickened 943 people across 39 counties this year. The individual, an unvaccinated resident of Lancaster County, was the fifth confirmed measles-related death in Pennsylvania since August, according to the Pennsylvania Department of Health.
The state did not disclose the date of the death or additional details about the individual. Lancaster County Coroner Dr. Stephen Diamantoni stated his office had no involvement in the case, and state officials provided no further information. The health department confirmed that all five deaths in Pennsylvania—including two infants—occurred among unvaccinated individuals.
Nationally, the U.S. Centers for Disease Control and Prevention (CDC) has recorded 3,569 confirmed measles cases as of September 24, with two deaths reported by the agency. The CDC noted that its death count may change as reviews continue. The Pennsylvania Department of Health has reported four measles-associated deaths, though the CDC has disputed whether measles directly caused those fatalities.
Measles outbreak details and scope
Pennsylvania’s outbreak has resulted in 176 hospitalizations since the beginning of the year, with six babies born with congenital measles. The state’s cases span 39 counties, with Lancaster County experiencing a significant share of infections. Other states, including Ohio and New York, have also reported high case numbers in recent weeks, according to the Johns Hopkins Bloomberg School of Public Health U.S. measles tracker.
Health experts warn that the true number of cases and deaths may be higher than reported. Dr. Paul Offit, director of the Vaccine Education Center at the Children’s Hospital of Philadelphia, suggested that many infections go unreported because individuals do not seek medical care. He stated, “I think if anything, we’re underestimating how many people are actually being exposed, infected, and hospitalized.”
Vaccination status and public health response
Nearly all confirmed measles cases in the U.S. this year have occurred among unvaccinated individuals, according to the CDC. The agency emphasizes that vaccination remains the most effective way to prevent measles, which can lead to severe complications, including pneumonia and encephalitis.
Public health officials continue to urge vaccination, particularly for travelers and high-risk groups, as measles exposures have been reported in public settings such as trains, sports stadiums, and bars. The CDC advises that unvaccinated individuals consider postponing travel to areas with active outbreaks.
Background on measles resurgence
The current outbreak represents the worst year for measles in the U.S. since 1991, with case numbers surpassing previous decades. Health authorities attribute the resurgence to declining vaccination rates, misinformation about vaccine safety, and reduced herd immunity in certain communities.
Measles is a highly contagious virus that spreads through respiratory droplets. Symptoms include fever, cough, runny nose, and a characteristic rash. Complications can be severe, particularly in young children, pregnant individuals, and immunocompromised persons.
Ongoing monitoring and data discrepancies
The CDC and state health departments have noted discrepancies in death reporting, with the CDC acknowledging that its figures may not align with state-level counts. The agency has stated that it reviews all reported measles-associated deaths to confirm causality, which may result in adjustments to its official tally.
Public health experts stress the importance of accurate data to guide response efforts and address misinformation about the disease and its prevention.