TL;DR
The Pan American Health Organization is expected to decide whether the United States has lost measles elimination status after reviewing transmission data from across the Americas. The U.S. has reported 5,412 confirmed cases and at least 10 deaths in 2026; the final classification had not yet been announced in the source report.
The United States is likely to lose its measles elimination status when the Pan American Health Organization reviews transmission data, according to experts cited by The 74. The decision, expected after a Nov. 10-13 committee meeting, comes as the country reports 5,412 confirmed cases and at least 10 deaths in 2026; the classification had not been announced in the report.
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The Pan American Health Organization (PAHO), a regional body within the World Health Organization, is reviewing measles, rubella and congenital rubella data across the Americas. Its committee assigns countries one of five classifications, from sustained elimination to endemic or pending classification. The United States was downgraded last year from the highest category to “sustained with major concerns.”
According to the Centers for Disease Control and Prevention figures cited by The 74, the U.S. had recorded 5,412 confirmed measles cases across 46 states and Washington, D.C. in 2026. That exceeds the 2,289 cases reported for all of 2025. At least 10 people had died nationally this year, including seven in Pennsylvania. Wisconsin officials reported a second child’s death in the state, after an infant died in early November; New York also reported the death of an unvaccinated 7-month-old.
The source report says 96% of people infected were unvaccinated or had an unknown vaccination status, and 58% were younger than 20. Seventeen percent of infected children under 5 had been hospitalized. In Wisconsin, officials reported 651 cases, more than 99% among unvaccinated residents. These figures describe reported cases and do not establish the vaccination status of every person infected.
The Cost of Losing Elimination
Elimination status is a public-health measure of whether a country has stopped sustained local transmission; it does not mean the disease can never enter from abroad. Losing the classification would mark a setback in controlling measles and signal that transmission has continued long enough to meet PAHO’s criteria. Paul Offit, director of the Vaccine Education Center at Children’s Hospital of Philadelphia, told The 74 that such a change would be largely symbolic because the virus has already gained a foothold, but called it a “significant step backward for public health.”
The increase also matters for families and health services because measles can cause severe illness, and outbreaks require public-health agencies to trace exposures and limit further spread. The reported deaths and hospitalizations show the consequences during this surge. National kindergarten MMR coverage fell from 95.2% in the 2019-20 school year to 92.5% in 2024-25, below the roughly 95% community vaccination level cited in the report as needed to reach herd immunity against measles.
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How Measles Status Is Set
A country loses elimination status when measles is transmitted continuously and without interruption for 12 months or longer, according to the criteria described in the source report. To regain the designation, it must show that endemic transmission has been interrupted for at least 36 months. The committee’s review covers the wider Americas, rather than only U.S. case totals.
The United States first achieved measles elimination 26 years before the report. Last year, PAHO moved the country to “sustained with major concerns.” The report also noted that Canada was the only other PAHO member country then without elimination status. In January, six countries in the WHO European Region lost their status, and 13 member states in that region were classified as endemic, according to the article.
““I think we will lose measles elimination status (and) I think we should.””
— Paul Offit, director of the Vaccine Education Center at Children’s Hospital of Philadelphia
PAHO’s Classification Is Pending
The final PAHO decision was not yet available in the source report. Experts told The 74 that the United States was likely to lose status, and a New York Times data analysis cited by the article also indicated that outcome was highly likely, but neither prediction is an official classification.
The report did not provide the committee’s final findings or specify which transmission data would determine the U.S. category. The precise timing of the public announcement was described as expected early the following week, not confirmed. Case totals and deaths can also change as health agencies update their reporting.
Committee Review and U.S. Response
PAHO’s committee was scheduled to meet from Nov. 10 through Nov. 13 to review measles and related disease data and determine country classifications. The source report said an official announcement was expected early the following week. The U.S. status will be clearer once PAHO releases its determination and rationale.
HHS said the department and CDC would keep working to stop transmission, address vaccination gaps and respond to outbreaks regardless of the outcome. The CDC’s case totals and state health departments’ outbreak reports will continue to track the domestic situation; the source does not specify a further federal action tied to PAHO’s decision.
Key Questions
Has the United States officially lost measles elimination status?
Not according to the source report. PAHO’s committee was scheduled to review the data, and experts expected the U.S. could lose status, but the official decision was still pending.
What does measles elimination status mean?
It reflects whether a country has stopped sustained local transmission. Under the criteria described in the report, uninterrupted transmission for 12 months or longer can lead to a country losing the designation.
How many measles cases and deaths were reported in the United States?
The CDC figures cited by The 74 counted 5,412 confirmed cases across 46 states and Washington, D.C. in 2026, along with at least 10 national deaths. These are figures reported at the time of the article and may change as agencies update their data.
What happens if the U.S. loses the classification?
It would record a setback in measles control, but the classification would not by itself change the federal response. HHS said the department and CDC would continue outbreak response and efforts to close vaccination gaps.
Source: the74million.org
