Measles Resurgence Puts U.S. Vaccine Gaps in Focus
WHO:
NBC News - The independent Pan American Health Organization commission evaluating U.S. measles elimination status includes eight epidemiologists, infectious-disease and vaccine experts from countries in the Americas, including the United States.
NBC News - Dr. Evan Shirey, a pediatric infectious-disease physician at Penn State Health Golisano Children’s Hospital, said parents increasingly bring vaccine concerns to his clinic.
NBC News - A UPMC spokesperson said the hospital system was reviewing concerns about guidance given after a measles exposure.
NPR - Dale Weiser, clinical services supervisor for the Chester County Health Department, has administered more than 400 MMR vaccine doses at Amish homes.
NPR - Jeanne Franklin, Chester County public health director, said personalized outreach helped build trust in the Plain community.
NPR - Jennifer Wallace, medical director of the Pennsylvania Department of Health’s Bureau of Community Health Systems, oversees pop-up clinics and outreach to vulnerable communities.
NPR - Steve Nolt, an Elizabethtown College professor who studies Amish history and culture, said anti-vaccine groups have targeted Amish communities.
CNN - CDC Director Dr. Erica Schwartz said the agency would continue working with states if the U.S. lost measles elimination status.
CNN - U.S. Health and Human Services Secretary Robert F. Kennedy Jr. oversees the CDC and other health agencies; the article says he has questioned MMR vaccine safety and efficacy and sought to reduce childhood immunizations.
NBC News - Dr. Jeffrey Koplan, former CDC director and vice president for global health at Emory University, said widespread support helped eliminate measles.
NBC News - The article identifies Mark Jit of NYU, Georges Benjamin of the American Public Health Association, Richard Besser of the Robert Wood Johnson Foundation, and Noel Brewer, chair of an independent committee assisting the CDC, among experts discussing the outbreak.
NBC News - Ben Riehl, an Amish man in Lancaster County, said anti-vaccine messaging influenced his community; he said he and his wife vaccinated their six sons.
NBC News - Lauren Shoup said her infant daughter Kieran, too young for MMR vaccination, was exposed to measles and received an immunoglobulin injection.
WHAT:
NBC News - Washington, D.C.’s childhood MMR vaccination rate rose to 94.4% in 2025, from 78.5% in 2019; Payne County, Oklahoma’s rate fell from 95.6% to 78.4%, and Scott County, Minnesota’s fell from 94.6% to 83%.
NBC News - In counties with the highest vaccination rates, coverage declined from 99.3% in 2019 to 97.7% in the 2025-26 school year.
NBC News - Nearly 100 measles cases were confirmed across the U.S. in 1998, the year CDC Director Jeffrey Koplan and colleagues began a four-year effort to stop domestic transmission; they achieved the goal in two years.
NBC News - Before the MMR vaccine, measles complications killed about 500 people annually in the U.S., most of them children.
NBC News - An infant exposed to measles at a Pittsburgh-area hospital received an immunoglobulin injection; three days later, an Allegheny County health department worker told her mother the infant should have been quarantined.
NPR - Pennsylvania had confirmed six measles-related deaths and more than 1,500 cases; officials said the true case count was likely higher because many sick people did not seek medical care.
NPR - Surveys suggested only about one-third of Amish families in the region vaccinate their children.
NPR - At a Christiana Fire Company pop-up clinic, 30 people attended and 24 were vaccinated, including a father and his three sons receiving second doses.
NPR - The Pennsylvania Department of Health held pop-up clinics in Lancaster County three or four times a week, advertising them by word of mouth.
NPR - A Honey Brook barbecue restaurant hosted a vaccine clinic attended by 24 people; its manager said he wanted to protect the public and his community.
NPR - Lydia Esh said her six adult children and she and her husband had been vaccinated, but her 13 grandchildren had not because their parents had heard a false claim that the MMR vaccine contains parts of aborted fetuses.
CNN - The U.S. had nearly 5,200 confirmed measles cases in 2026, compared with 2,289 in 2025; state health departments reported 11 deaths since early 2025.
NBC News - The U.S. had more than 5,000 confirmed cases and 43 outbreaks in 2026; eight people, including four babies too young to be vaccinated, had died.
NBC News - Three-quarters of counties with recent kindergarten immunization data were below the 95% vaccination threshold for community protection; 75% of counties and jurisdictions with MMR data were below that threshold.
NBC News - County vaccination exemptions increased in 86% of counties since 2019. In the least-vaccinated communities, the highest rate fell from 81.8% in the 2024-25 school year to 79.2% in 2025-26.
NBC News - Lancaster County’s kindergarten MMR rate was 87.6% in 2025-26, down from 95.5% in 2017-18. Allegheny County’s rate fell from 97.1% in 2019 to 92.9% last school year.
NBC News - The data investigation found almost four in 10 counties had declines exceeding five percentage points since 2019; approximately one in eight had declines of that size since 2024.
WHERE:
NBC News - Utah officials had not declared an end to the outbreak; the state recently diagnosed another case and continued detecting the virus in wastewater samples.
CNN - PAHO experts are considering the U.S. measles elimination status; outbreaks have affected close-knit communities, including Amish communities in Pennsylvania.
NBC News - Outbreaks have occurred in West Texas, Utah, Arizona, South Carolina, Pennsylvania, Indiana, Ohio, Minnesota, New York and Wisconsin.
WHEN:
CNN - The U.S. has held measles elimination status since 2000; PAHO’s decision was expected by early next week.
NBC News - Measles was officially eliminated in the U.S. in 2000. The updated vaccination data was collected from June to October 2026.
WHY:
NBC News - The article reports that measles can remain airborne for hours after an infected person leaves a room and that nearly everyone unvaccinated who is exposed becomes infected.
NPR - Dale Weiser said practical and cultural factors, lack of health insurance, limited interaction with mainstream medical care, and measles having posed little perceived risk for decades influenced Amish vaccination decisions.
NBC News - Experts attributed declining vaccine coverage to decades of anti-vaccine claims, pandemic-era misinformation and interruptions to routine vaccinations.
CNN - Schwartz identified closely knit communities with lower vaccination rates as a primary source of U.S. infections.
HOW:
NBC News - NBC News and Stanford University researchers standardized vaccination and exemption records from state and local sources, including public records and Freedom of Information Act materials; the analysis found almost four in 10 counties had MMR vaccination declines exceeding five percentage points since 2019, and about one in eight had declines of that size since 2024.
NPR - Pennsylvania health officials used home visits, relationships with Amish church leaders and businesses, and community-distributed flyers to promote vaccination; clinics allowed people to ask questions and consider the information before deciding.
CNN - Schwartz said the CDC would continue supporting states and emphasizing MMR vaccination as the primary way to prevent measles.
NBC News - PAHO is assessing whether a transmission chain lasted more than 12 months and whether many cases had unknown sources.
NBC News - The data investigation compiled state and local records, including documents obtained through Freedom of Information Act requests; researchers standardized data to compare county vaccination and exemption rates.
(UPDATED November 11, 2026 01:05 UTC)
The United States risks losing measles elimination status as infections surge and vaccination rates fall. Nearly 5,200 cases were confirmed this year, with outbreaks across the country. Pennsylvania health workers are building trust through home visits and pop-up clinics.
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(UPDATED November 11, 2026 00:02 UTC)
The United States has recorded more than 5,000 measles cases this year. Falling vaccination rates and misinformation have fueled outbreaks. Pennsylvania health workers are building trust through home visits and pop-up clinics offering vaccines.
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(UPDATED November 10, 2026 23:00 UTC)
The United States faces losing measles elimination status as cases exceed five thousand this year. Three-quarters of counties fall below the vaccination coverage needed to protect communities. Health officials urge MMR vaccination, while closely knit communities fuel continuing outbreaks.