Published November 14, 2026 · By
The United States has lost its measles elimination status, a designation it had held since 2000, after the Pan American Health Organization determined that the virus has been spreading inside the country for at least 12 months. Researchers with knowledge of the decision confirmed it to KFF Health News on Saturday, CBS News reported, and PAHO is expected to discuss the finding at a news conference on Tuesday. The measles elimination status decision comes as federal data show more than 5,400 confirmed cases this year, the most in decades.
Why the U.S. Lost Its Measles Elimination Status
Under the World Health Organization standard, a country keeps measles elimination status only when it has no locally transmitted measles infections or outbreaks lasting 12 months or longer. PAHO, the WHO regional office for North and South America, reviews that standard for countries in the region. According to CBS News, the United States failed to meet the measles elimination status test for the first time since the disease was declared eliminated here in 2000.
CBS reported that roughly one-third of this year's cases are linked to outbreaks that began in 2025 and never fully stopped. That continuous spread is the key factor in losing measles elimination status: elimination does not mean zero cases, since travelers can still bring the virus in, but it does mean outbreaks are contained before they run for a full year. WPDE, a Sinclair station whose report was syndicated nationally, described the change as the first time in about three decades that the U.S. designation has been revoked.
The 2026 numbers behind the decision
The Centers for Disease Control and Prevention counted 5,412 confirmed measles cases as of Nov. 12, according to WPDE and CBS. That compares with about 2,250 to 2,290 cases in 2025, depending on the source, and 285 in 2024. CBS said cases have been confirmed in 45 states and Washington, D.C., with 43 new outbreaks of three or more related cases so far this year and more than 590 hospitalizations.
The states with the most cases, based on CDC figures cited by WPDE, are Pennsylvania (1,529), South Carolina (670), Utah (536), Wisconsin (505), Kentucky (212), Ohio (211) and New York (210). Texas, Virginia and Minnesota round out the top 10. CBS, citing the CDC, said 96% of this year's patients were unvaccinated or had an unknown vaccination status, while about 2% were fully vaccinated.
A dispute over how many people have died
State health departments have reported 10 measles-associated deaths this year: seven in Pennsylvania, two in Wisconsin and one in New York, according to Al Jazeera. The New York case, a child, was the state's first measles death in more than 30 years. Wisconsin reported an infant's death on Friday.
The CDC's national tally lists six deaths. Al Jazeera reported that Health and Human Services Secretary Robert F. Kennedy Jr. asked CDC Director Erica Schwartz not to include some of the state-reported deaths, saying there was no evidence they were caused by measles. Pennsylvania officials, under Democratic Gov. Josh Shapiro, count a death as measles-associated when a confirmed patient dies within 30 days of symptoms starting, unless another event clearly caused it. The CDC is working with the Council of State and Territorial Epidemiologists on a common definition, Al Jazeera said.
How Officials and Experts Responded to the Measles Elimination Status Decision
The news reports reviewed for this article did not include a public statement from HHS or the CDC on the PAHO determination as of Saturday evening. PAHO itself had not released a formal statement on U.S. measles elimination status, and its Tuesday briefing is expected to provide the official details, including which chain of transmission triggered the finding.
Public health physicians quoted by CBS described the change as a setback. Dr. Omer Awan, a physician and public health writer, said the outcome is "frustrating and heartbreaking" because two doses of the measles, mumps and rubella (MMR) vaccine are about 97% effective. He said fighting misinformation and running vaccination campaigns would be central to regaining measles elimination status.
Dr. Céline Gounder, a CBS News medical contributor, said doctors should now consider measles in any patient with a fever and rash, whether or not the person has traveled. She also warned that the U.S. could become a source of measles cases in other countries. Gounder noted that nine states made it easier to opt out of school vaccine requirements in 2025, while states that ended nonmedical exemptions saw kindergarten vaccination rates rise by 2 to 4 percentage points.
The policy debate ahead
Any path back to measles elimination status runs largely through the states, because vaccination rules for schoolchildren are set mainly by state legislatures, and most of them reconvene in January. Kindergarten MMR coverage has fallen from 95.2% in the 2019-20 school year to 92.4% in 2025-26, Al Jazeera reported, below the roughly 95% level public health agencies say is needed to stop sustained spread.
At the federal level, the dispute over death counts is the clearest point of disagreement so far. Secretary Kennedy's position, as reported by Al Jazeera, is that some deaths lack evidence of a measles link, while Pennsylvania officials stand by their counting method. Infectious disease experts cited by Al Jazeera said the HHS approach departs from the method the WHO and CDC have long used.
What Losing Measles Elimination Status Means for You
The loss of measles elimination status is a label, not a new law, so nothing about your health insurance, school forms or travel documents changes overnight. But it signals that measles is now circulating in U.S. communities rather than arriving only through travel. Here is what that means in practical terms.
Check your family's vaccination records
The CDC recommends two doses of MMR vaccine for children, the first at 12 to 15 months and the second at 4 to 6 years. Adults born in 1957 or later without proof of immunity are generally advised to get at least one dose. If you cannot find your records, your doctor or state immunization registry can help. You can find current case counts and guidance on the CDC measles data page.
Who faces the highest risk
Babies too young to be vaccinated, pregnant women and people with weakened immune systems cannot get the MMR shot and rely on the people around them being protected. Measles can lead to pneumonia, brain swelling and, in rare cases, death. If you live in or near one of the outbreak states, watch for local health department alerts about exposure sites such as schools, clinics and airports.
Costs and coverage
Most private insurance plans cover routine childhood vaccines like MMR without a copay, and Medicaid and the Vaccines for Children program cover eligible kids. Families following changes to public coverage can read our report on Medicaid work rules. A hospital stay for measles can cost thousands of dollars, so prevention is usually far cheaper than treatment.
Travel and schools
Our analysis: health authorities abroad may watch U.S. travelers more closely, and schools in outbreak areas often keep unvaccinated students home during active outbreaks. Parents of young children in child care should ask about policies; our coverage of Head Start teachers explains other HHS changes affecting early childhood programs.
What Comes Next
PAHO's Tuesday briefing should clarify the formal basis for the measles elimination status decision. To regain measles elimination status, the U.S. would need to go at least 12 months without continuous local transmission, which in our analysis means stopping the current outbreaks in Pennsylvania, South Carolina, Utah and elsewhere. With state legislative sessions starting in January and the death-count dispute unresolved, vaccine exemption rules and federal data practices are likely to remain active policy questions in 2027.
This article is for information only and is not medical or financial advice. Talk to a health care provider about your family's vaccination needs.
Sources: CBS News (Nov. 14, 2026); WPDE/Sinclair (Nov. 14, 2026); Al Jazeera (Nov. 14, 2026); Bloomberg, citing The Wall Street Journal (Nov. 14, 2026); CDC measles cases and outbreaks.
