US measles cases climbed by almost 100 in the past week, reaching 1,671 infections, the Centers for Disease Control and Prevention (CDC) said today in its weekly update. The vast majority of the 96 new cases are in Utah.
The CDC said all but 10 of the 2026 cases are from 32 states and New York City, with the rest travel-related. The number of affected states grew this week by one. Of all confirmed cases, 94% are associated with one of 17 outbreaks, with one of those outbreaks (three or more related cases) being new.
Last year, the country saw 48 outbreaks, many of which are still ongoing. Last year’s case total was 2,286, including three deaths. No measles-related deaths have been confirmed yet this year, but 91 patients have been hospitalized, or 5%, compared with 11% last year. Among all patients this year, 92% are unvaccinated or have an unknown vaccine status.
The United States is on pace to top last year’s measles total this spring. The country will likely lose its measles elimination status—which it gained in 2000—in November, when officials assess the data.
Utah’s outbreak grows by 73 cases
Measles cases in Utah are skyrocketing, according to the Utah Department of Health and Human Services. The state now has 362 cases in 2026, compared with 197 for all of last year. Officials recorded 73 new cases this week, and 142 new cases in the past three weeks. The CDC measles map lists 378 cases in Utah this year.
Southwest Utah has 242 (43%) of the state’s 559 total for 2025 and 2026, but regions across the state are now also being hit hard, which is a much different scenario than in 2025, when the vast majority of cases were in the southwest.
Arizona has 11 new cases, and 71 for 2026, North Dakota recorded five new infections (31 total), and Texas also has five new cases (175 total), according to the CDC map. Washington state officials reported three new cases this week, including two travel-related infections in King County. The state now has 31 cases this year. Neighboring Idaho has one new case, 23 total.
The CDC map now lists 129 cases in Florida, which is actually five fewer than it had last week. A CNN measles map, however, notes 143 cases in the state. Concrete figures are difficult to discern, because the state’s health department doesn’t systematically report cases.
South Carolina officials today again reported no new infections for more than two weeks. It could declare its outbreak over if it sees no new cases by April 26.
