Between September 25–27, 2026, reports documented at least six infants born with measles in Pennsylvania, including two requiring intensive care admission. The resurgence follows declining vaccination rates and increased measles infections among pregnant women.
Republican Senator Bill Cassidy, chairman of the U.S. Senate health committee, blamed the Trump administration's vaccine policy for measles deaths in Pennsylvania as of September 16–18, 2026, calling the outbreak a 'terrible legacy' while pressing Trump's surgeon general nominee on vaccine views.
On 2026-09-16, hospitals and clinics in Pennsylvania discussed their response to an ongoing measles outbreak. Medical professionals described how health facilities in affected areas were managing the disease.
Pennsylvania reported a fourth measles-related death on September 16, 2026—an 18-year-old joining two unvaccinated infants and a 40-year-old—making 2026 the deadliest measles year in the United States in decades. The outbreak continues to spread across the country.
As of September 16, 2026, a fourth person died of measles-associated illness in Pennsylvania, marking the worst year for the disease since 1992. All four deaths occurred in the same state, underscoring a serious measles outbreak among one of the most contagious diseases.
Pennsylvania health officials reported on September 15, 2026, two additional measles-related deaths, bringing the state's 2026 total to four—the highest number of measles fatalities in decades for the United States. The deaths occurred amid a record year for measles cases nationally.
Pennsylvania officials reported on 14 September 2026 that a 40-year-old woman died of measles on 13 September, marking the state's third measles-related death. The death was confirmed by Jefferson County Coroner Greg Furlong.
Pennsylvania reported another measles-related death and 676 total cases as of 2026-09-14. The outbreak continues to expand across the state.
Pennsylvania recorded its fourth measles-associated death by September 15, 2026, when an 18-year-old died of a rare and severe complication. Earlier deaths included a 40-year-old unvaccinated woman and two infants in August; the outbreak has infected over 670 people.
A Pennsylvania coroner confirmed on September 9, 2026, that two measles-related deaths in the state involved infants, with the virus itself being the direct cause of at least one death. The deaths were part of a growing measles outbreak in Pennsylvania.
The U.S. Centers for Disease Control and Prevention stated on September 4, 2026, that no deaths had been attributed to measles in the United States that year, contradicting Pennsylvania's claim of two measles fatalities. The dispute has escalated into a political confrontation.
A six-week-old child in Lancaster County died from measles on 2026-09-04, according to coroner Stephen Diamantoni. The infant had a rare genetic disorder that increased vulnerability to respiratory infections.
On September 4, 2026, Lancaster County, Pennsylvania coroner Stephen Diamantoni confirmed that an infant from the Amish community died of measles. On September 5, RFK Jr. acknowledged the death and accused Governor Josh Shapiro of politicizing it.
A six-week-old baby girl in Lancaster County, Pennsylvania, died from measles on or before September 4, 2026, representing one of two measles deaths in the region. The death contributed to the U.S. reaching a new 35-year record for measles cases.
Reports indicate Robert F. Kennedy Jr. ordered the deletion of measles death reports from the CDC, but CDC staff had already accepted the reports when he intervened. The CDC continues to track the data internally despite the attempted suppression.
Between 2026-09-03 and 2026-09-05, U.S. Health Secretary Robert F. Kennedy Jr. asked his new CDC director to remove references to measles deaths from Pennsylvania (initially two deaths, later acknowledged as one) after questioning whether the disease was the cause. Kennedy later acknowledged at least one death on 2026-09-05.
On September 3, 2026, tensions escalated between the CDC and Pennsylvania over measles deaths, with Pennsylvania reporting two deaths including an infant from measles-associated conditions, but the CDC excluding them from official weekly tallies. The dispute raised questions about which authority determines death classification.
CDC Director challenged Pennsylvania's investigation into two reported measles deaths on 31 August 2026, in an unusually public disagreement reflecting tensions between the Trump administration and states over health policy. The agency's questioning of state findings signals fundamental friction over disease reporting and management.
Health and Human Services Secretary Robert F. Kennedy Jr. clashed with Pennsylvania officials and promoted vaccine conspiracy theories on August 26–28, 2026, falsely claiming two recent measles-associated deaths were fabricated. Anti-vaccine activists amplified the claims online.
Pennsylvania reported the first two measles deaths in the United States in 2026 by August 26, as the country faced its worst measles outbreak in 35 years. Both deceased were unvaccinated residents, highlighting concerns about vaccine hesitancy amid the growing outbreak.
Two unvaccinated residents of Lancaster County, Pennsylvania died from measles by August 26, 2026, marking the first measles deaths in the United States that year. One of the deceased was an infant; the deaths occurred amid the worst measles outbreak in the US in over three decades.
Two unvaccinated people died of measles in Lancaster County, Pennsylvania, on August 25—the state's first measles deaths in 35 years—triggering calls for health secretary Robert F. Kennedy Jr.'s resignation and sparking conflict with Governor Josh Shapiro over vaccine distrust.