The Pan American Health Organization’s expert panel has determined that the United States has lost its measles elimination status, Axios reported on Saturday, after a three day meeting in Washington. The panel concluded that the same measles strain has circulated in the United States for longer than 12 months without a break, the test for elimination. The CDC tally cited in the report puts confirmed cases at 5,412 so far in 2026, against 2,289 in all of 2025 and the highest count in 35 years, with a Pennsylvania outbreak accounting for more than 1,500 cases and six measles associated deaths. Experts quoted in the report describe the determination as largely symbolic in itself: it means the virus is now treated as endemic, spreading in pockets of unvaccinated people, and it follows the loss of the same status by Canada and the United Kingdom over the past year.
An independent commission of the Pan American Health Organization is meeting in Washington this week, November 10 to 13, to decide whether the United States still qualifies as a country that has eliminated measles, a status it has held since 2000. The commission’s recommendations go to the PAHO director, who communicates the classification to national authorities, and the CDC director, Dr. Erica Schwartz, told Reuters on November 10 that she expected a decision by early next week.
The standard is specific. A country loses elimination status if the same measles virus genotype and lineage has circulated without interruption for 12 months or more. That puts the genomic sequencing evidence at the center of this week’s closed review: if the data fail to show that the country’s many outbreaks are genetically linked, the United States could retain the status even as case counts climb. Several epidemiologists told CIDRAP News they expect PAHO to deem measles endemic again regardless, given outbreaks that sustain themselves and seed new ones across the country.
The case numbers frame the decision. The CDC reported 5,182 confirmed measles cases in 2026 through November 5, more than double the 2,289 recorded across all of 2025 and the highest annual total since 1991. In 2000, the year elimination was declared, the CDC reported 85 cases. At least eight people have died of measles in the United States in 2026, on top of three deaths last year, according to STAT and CIDRAP reporting. The same commission found at its November 2025 meeting that measles was again endemic in Canada, and classified the United States then as “sustained with major concerns.”
Schwartz told Reuters that the federal response would not fundamentally change if the status is lost: the CDC would keep working with states, raising public awareness and promoting the MMR vaccine. Two doses of that vaccine are 97 percent effective, and supplies are ample, which is why specialists frame the resurgence as a coverage failure rather than a supply or science failure. Brazil lost elimination status in 2019 and regained it in 2024, the precedent for reversal if vaccination rates recover.
For the sector, the decision itself moves no revenue line directly. Its significance is political and regulatory: an adverse finding lands weeks after a midterm election that gave Democrats both congressional majorities, and health policy analysts expect it to strengthen the case for restored public health funding when the new Congress is seated in January.