ProPublica Links Utah Measles to 2025 Texas Strain, Jeopardizing U.S. 25-Year Measles-Free Status
Updated
Updated · ProPublica · Jun 8
ProPublica Links Utah Measles to 2025 Texas Strain, Jeopardizing U.S. 25-Year Measles-Free Status
2 articles · Updated · ProPublica · Jun 8
Summary
More than 1,800 genome sequences reviewed by ProPublica show measles still circulating in Utah in May 2026 is closely related to the virus that began spreading in West Texas in January 2025.
Only 12 of nearly 16,000 genetic letters differ between the early Texas sample and the later Utah sample, with five mutations seen in Texas by May 2025 later appearing in Utah as cases surged.
That pattern does not prove uninterrupted U.S. transmission, but it could make it harder for American officials to show Utah was sparked by a separate imported case rather than a chain lasting more than a year.
The CDC said sequencing alone cannot establish sustained spread and that it is combining genomic, travel and exposure data in a broader review before a Pan American Health Organization decision now delayed until November.
Since Trump took office last year, the U.S. has logged more than 4,300 measles cases, and experts say weakening vaccine confidence and mandates could make endemic transmission increasingly hard to prevent.
As measles spreads for over a year, what does this reveal about America's ability to handle future pandemics?
If genetic data links the year-long outbreak, why did U.S. health officials initially deny the connection?
With its measles-free status at risk, how can the nation rebuild trust in vaccines amid official skepticism?
U.S. Measles Elimination at Risk: Record Outbreaks, Falling Vaccination Rates, and the 2026 PAHO Review
Overview
The United States is facing a major measles crisis, with unprecedented outbreaks that have pushed cases to a 30-year high and seriously threaten the nation’s measles elimination status. Most infections are linked to known outbreaks and occur in people who are unvaccinated or whose vaccination status is unknown. This surge, driven by declining vaccination rates and ongoing vaccine hesitancy, has led to multiple deaths and widespread transmission across several states, including Texas. The situation has drawn urgent attention from public health authorities, who are now working to contain the outbreaks and prevent the loss of the country’s hard-won elimination status.