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CNBC: U.S. measles cases top 4,400 this year as experts flag vaccine gaps
CNBC reports more than 4,400 U.S. measles cases and at least three deaths in 2026, citing experts who say falling MMR coverage and weaker public-health capacity leave the country exposed.
- New headline Was: “A 'canary in the coal mine': Measles resurgence exposes weaknesses in U.S. public health, experts say”
- Our desk filed its story
The United States has recorded more than 4,400 measles cases and at least three deaths so far in 2026, the worst such surge in more than three decades, CNBC reported Tuesday, citing national totals after nearly 2,300 cases in 20251.
The business outlet said it spoke with 10 public-health experts who argued the return of a virus the country once eliminated also points to lower childhood vaccination, weaker trust in health agencies and harder work persuading people to take shots1.
Jennifer Nuzzo, an epidemiology professor who directs the Pandemic Center at Brown University School of Public Health, told CNBC, "Measles is the canary in the coal mine for so many different reasons"1. She said gaps that let measles spread could also matter for other vaccine-preventable illnesses and sudden infectious-disease emergencies1.
CNBC said the Pan American Health Organization is scheduled to review the country's official measles elimination status in Washington in mid-November1. The measles, mumps and rubella vaccine is about 97% effective after two doses and 93% after one, according to CDC figures cited in the report1.
CDC data aggregated in the piece showed kindergarten MMR coverage has left about 280,000 children without a completed series, and exemptions for incoming kindergartners hit 4.2% in the 2025-2026 school year, up from 3.6% the year before1. Nuzzo said not enough people are vaccinating children and that much recent spread has been local transmission in communities below 95% coverage1.
CNBC cited a September NBC News review finding 67% of counties and jurisdictions that collect MMR data were below that 95% mark1. Dr. William Moss of Johns Hopkins Bloomberg School of Public Health said recent outbreaks have often been in closely knit communities with frequent contact and low coverage1. A July KFF poll cited in the story found many Americans in an uncertain middle on childhood vaccines even as most parents still vaccinate1.
The report said President Donald Trump signed an August executive order suggesting the combined MMR shot be split, while repeating claims about its safety that CNBC described as false, and that Health and Human Services Secretary Robert F. Kennedy Jr. has overhauled a federal vaccine advisory committee1. Several experts told CNBC those moves risk further eroding confidence1. Virologist Scott Weaver said COVID-era cuts and CDC staff losses have weakened vaccine-preventable-disease expertise, and that as of September the CDC was no longer immediately folding state-reported measles-associated deaths into its national tally1.
A large epidemiological model published in JAMA in April 2025, cited by CNBC, estimated about 851,300 measles cases over 25 years if current state-level vaccination rates hold1. Michael Osterholm of the University of Minnesota pointed to Canada, which lost elimination status after more than 5,400 cases in 2025, as a warning1. CDC data in the report also showed kindergarten polio coverage at 92.4% and DTaP at 92% for 2025-2026, with whooping cough cases far above pandemic-era levels1.
CNBC's account is a single-outlet expert roundup; CDC line-listed case counts, PAHO's forthcoming decision and the JAMA model's assumptions were not independently reviewed for this filing1. Not medical advice.
