U.S. Measles Cases More Than Doubled in 2026 Versus Full Year 2025
The acceleration in confirmed cases raises a concrete question about whether the United States will retain the measles elimination status it has held since 2000, with a formal ruling expected this...
The United States recorded more confirmed measles cases in 2026 than in all of 2025 combined, according to tracking data reported by CBS News on November 10, 2026. The report cited figures compiled through a case-count tracker, though the Centers for Disease Control and Prevention (CDC) is the primary federal agency responsible for publishing official totals. The specific numeric totals for both years were not disclosed in the CBS News report; the precise figures would be contained in CDC weekly Morbidity and Mortality Weekly Reports (MMWR), which are public records.
The timing of the increase is significant because the Pan American Health Organization (PAHO) is convening experts this week to evaluate whether the United States still qualifies for measles elimination status, a designation the country has held since 2000, according to the CBS News report. Elimination status is defined by the CDC as the absence of continuous, year-round endemic measles transmission within a defined geographic area for at least twelve months.
Loss of elimination status would represent a formal public health classification change with downstream implications for federal vaccination policy, international travel guidance, and federal program funding tied to immunization benchmarks. The specific federal programs and funding amounts that would be affected by a status change are not fully detailed in available public records; relevant budget documents would be found in the Department of Health and Human Services (HHS) annual congressional justifications.
Measles had been considered eliminated in the United States since 2000 following a sustained national vaccination campaign built on the two-dose measles, mumps, and rubella (MMR) vaccine protocol. The CDC recommends two MMR doses for children, with the first at twelve to fifteen months and the second at four to six years, as documented in the CDC immunization schedule published annually.
Case counts in the United States began trending upward in the years following 2019, when the CDC recorded 1,282 cases, the highest total since 1992, according to previously published CDC MMWR data. That 2019 surge was driven largely by outbreaks in communities with lower vaccination rates, according to CDC epidemiological reports published at that time. How 2026 figures compare to the 2019 peak is not determinable from the CBS News report alone; the full 2026 annual count from the CDC would answer that question.
National childhood vaccination coverage rates are tracked annually by the CDC through the National Immunization Survey (NIS). The most recent NIS data publicly available covers coverage through the 2024-2025 school year, as published by CDC. Whether coverage rates declined in 2025 or 2026 in a manner that would statistically explain the case increase is not established by the available source material.
The federal government's role in vaccination policy operates primarily through the CDC's Advisory Committee on Immunization Practices (ACIP), which makes vaccine recommendations, and through federal funding to states via the Vaccines for Children (VFC) program and Section 317 of the Public Health Service Act. Congressional appropriations for those programs are set in annual Labor, Health and Human Services, and Education appropriations bills. The most recent enacted appropriations for those line items would be found in the relevant division of the Consolidated Appropriations Act or continuing resolution currently in force.
CBS News medical correspondent Dr. Celine Gounder contributed reporting on the case-count findings. The report did not specify which states account for the largest share of 2026 cases; a state-by-state breakdown would be available in CDC MMWR outbreak reports and state health department epidemiological bulletins, all of which are public records.
What remains unknown is the final 2026 case count, the geographic distribution of those cases, the vaccination coverage rate among affected individuals, and the precise PAHO ruling on U.S. Elimination status. The PAHO ruling is expected to be issued this week and will be a matter of public record upon release. The CDC's final 2026 annual case tally will be published in a year-end MMWR summary, which is a public document.